All the quotes from my quote rotator:

The most formidable weapon against errors of every kind is reason. I have never used any other, and I trust I never shall. — Thomas Paine, Age of Reason

Quis custodiet ipsos custodes? — Juvenal

Sapere aude (Dare to know) — Immanuel Kant

Acting alone has the advantage of clarity of purpose, but at the cost of legitimacy and, thus, of effectiveness in the longer term. — Javier Solana

Adjustinq to the requirement for perfection is the most difficult part of learning to program. — Fredrick Brooks, Mythical Man Month

Authority is acquired from the very momentum of accomplishment. — Fredrick Brooks, Mythical Man Month

You cannot reason a person out of a position he did not reach through reason. — Jonathan Swift

Never attribute to malice what can be adequately explained by stupidity. — Robert Heinlen (Heinlen’s razor)

Those who can make you believe absurdities can make you commit atrocities. — Voltaire

There is really no such thing as alternative medicine, just medicine that works and medicine that doesn’t … there isn’t an ‘alternative’. — John Diamond

No conduct should be suppressed by law unless it can be shown to harm someone. — Bernard Williams

The Church says that the Earth is flat, but I know that it is round. For I have seen the shadow on the moon, and I have more faith in Shadow than in the Church. — Ferdinand Magellan

To rest one’s case on faith means to concede that reason is on the side of one’s enemies – that one has no rational arguments to offer. — Ayn Rand

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. — Galileo Galilei

I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use. — Galileo Galilei

People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf. — Anon (incorrectly attributed to George Orwell)

A censor is a man who knows more than he thinks you ought to. — Granville Hicks

There’s nothing wrong with teenagers that reasoning with them won’t aggravate. — Anon

Men will not be free until the last King is strangled with the entrails of the last priest. — Voltaire

You who pronounce my sentence are in greater fear than I who receive it. — Giordano Bruno, On being condemned as a heretic by the inquisition for suggesting the universe was infinite. He was burned at the stake in 1600.

It is undesirable to believe in a proposition when there is no ground whatever for supposing it true. — Bertrand Russell

Science must begin with myths and the criticism of myths. — Karl Popper

Physics is not a religion. If it were we would have a much easier time raising money. — Leon Lederman

In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in poetry it’s the exact opposite. — Paul Dirac

An astronomer must be cosmopolitan, because ignorant statesmen cannot be expected to value their services. — Tycho Brahe

Holy writ was intended to teach men how to go to heaven, not how the heavens go. — Galileo Galilei

Patriotism is the last refuge of a scoundrel. — Samuel Johnson

Imagination is more important than knowledge. — Albert Einstein

Reality is merely an illusion, albeit a very persistent one. — Albert Einstein

Anyone who has never made a mistake has never tried anything new. — Albert Einstein

Everything should be made as simple as possible, but not simpler. — Albert Einstein

Science is a wonderful thing if one does not have to earn one’s living at it. — Albert Einstein

You know the way in lap dancing clubs you can’t touch the girls. Can you touch yourself? — Twin Cylinder

A witty saying proves nothing. — Voltaire

I disapprove of what you say, but I will defend to the death your right to say it. — Voltaire

Marriage is the only adventure open to the cowardly. — Voltaire

The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at or repair. — Douglas Adams

History will be kind to me for I intend to write it. — Sir Winston Churchill

It has been said that democracy is the worst form of government except all the others that have been tried. — Sir Winston Churchill

Men occasionally stumble over the truth, but most of them pick themselves up and hurry off as if nothing ever happened. — Sir Winston Churchill

It is better to light a candle than to curse the darkness. — Chinese Proverb

Neither look for nor expect gratitude, but rather get whatever comfort you can out of the belief that your effort is constructive in purpose. — Sir Winston Churchill

If it was easy, they wouldn’t need us to do it for them. — SK

Always read stuff that will make you look good if you die in the middle of it. — P.J. O’Rourke

When buying and selling are controlled by legislation, the first things to be bought and sold are legislators. — P.J. O’Rourke

Entia non sunt multiplicanda praeter necessitatem (Entities must not be multiplied beyond necessity, or: All other things being equal, the simpliest answer is most likely.) — William Occam

Moderation in all things, including moderation. — Anon

Reality is that which, when you stop believing in it, doesn’t go away. — Philip K. Dick

An Atheist is a man who has no invisible means of support. — John Buchan

Change only takes place through action, not through meditation and prayer. — Dalai Lama

Atheism – a non prophet organisation. — Anon

Atheists scream YOUR name during sex. — Anon

When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong. — Arthur C. Clarke

A delusion held by one person is a mental illness, held by a few is a cult, held by many is a religion. — Robert Carroll

It is the province of knowledge to speak and it is the privilege of wisdom to listen. — Oliver Wendell Holmes

Before you criticize someone, you should walk a mile in their shoes. That way, when you criticize them, you’re a mile away and you have their shoes. — Anon

When I was a kid, I used to pray every night for a new bicycle. Then I realized that the Lord didn’t work that way. So I just stole one and asked him to forgive me. — Emo Philips

If the only tool you have is a hammer, you tend to see every problem as a nail. — Abraham Maslow

Blasphemy is an epithet bestowed by superstition upon common sense. — Robert Ingersoll

In nature there are neither rewards nor punishments – there are consequences. — Robert Ingersoll

I admit that reason is a small and feeble flame, a flickering torch by stumblers carried in the star-less night, blown and flared by passion’s storm, and yet, it is the only light. Extinguish that, and nought remains. — Robert Ingersoll

Learn from the mistakes of others. You won’t live long enough to make all of them yourself. — Anon

Good judgment comes from experience. Unfortunately, the experience usually comes from bad judgment. — Anon

Forti et fideli nihil difficile. (To the brave and faithful, nothing is impossible) — Munster fans everywhere

Less is more. — Ludwig Mies van der Rohe

Ignorance more frequently begets confidence than does knowledge. — Charles Darwin

To the living we owe respect, but to the dead we owe only the truth. — Voltaire

The man who leaves money to charity in his will is only giving away what no longer belongs to him. — Voltaire

Doubt is not a pleasant condition but certainty is an absurd one. — Voltaire

This is no time to make new enemies. — Voltaire, when asked on his deathbed to forswear Satan.

It is dangerous to be right in matters on which the established authorities are wrong. — Voltaire

A nation of sheep will beget a government of wolves. — Edward R. Murrow

Only the dead have seen an end to war. — Plato

Those who cannot remember the past are condemned to repeat it. — George Santayana

Autobiography is only to be trusted when it reveals something disgraceful. A man who gives a good account of himself is probably lying. — George Orwell

The most preposterous notion that H. sapiens has ever dreamed up is that the Lord God of “Creation, Shaper and Ruler of all the Universes, wants the saccharine adoration of His creatures, can be swayed by their prayers, and becomes petulant if He does not receive this flattery. Yet this absurd fantasy, without a shred of evidence to bolster it, pays all the expenses of the oldest, largest, and least productive industry in all history. — Robert A. Heinlein

If you trust Google more than your doctor than maybe it’s time to switch doctors. — Jadelr and Cristina Cordova

Two people can keep a secret. If one of them is dead. — Anon

If liberty means anything at all , it means the right to tell people what they do not want to hear. — George Orwell

If it looks like a duck, and quacks like a duck, we have at least to consider the possibility that we have a small aquatic bird of the family anatidae on our hands. — Douglas Adams

We are all atheists about most of the gods that societies have ever believed in. Some of us just go one god further. — Richard Dawkins

Nature is not cruel, pitiless, indifferent. This is one of the hardest lessons for humans to learn. We cannot admit that things might be neither good nor evil, neither cruel nor kind, but simply callous — indifferent to all suffering, lacking all purpose. — Richard Dawkins

Isn’t it enough to see that the garden is beautiful without believing there are fairies at the bottom of it too? — Douglas Adams

There is no such thing as a stupid question, there are only stupid answers. — Anon

I’m not convinced that faith can move mountains, but I’ve seen what it can do to skyscrapers. — William Gascoyne

When one person suffers from a delusion, it is called insanity. When many people suffer from a delusion it is called Religion. — Robert M. Pirsig

PRAY, v. To ask that the laws of the universe be annulled in behalf of a single petitioner confessedly unworthy. — Ambrose Bierce, The Devil’s Dictionary

The fact that a believer is happier than a sceptic is no more to the point than the fact that a drunk is happier than a sober person. — George Bernard Shaw

The God of the Old Testament, is arguably the most unpleasant character in all fiction: jealous and proud of it; a petty, unjust, unforgiving control-freak; a vindictive ethnic cleanser; a misogynistic, homophobic, racist, infanticidal, genocidal, filicidal, pestilential, megalomaniacal, sadomasochistic, capriciously malevolent bully. — Richard Dawkins

Politics has slain its thousands, but religion has slain its tens of thousands. — Sean O’Casey

Without religion you’d have good people doing good things, and evil people doing evil things. But for good people to do evil things, it takes religion. — Steven Weinberg

Many people would sooner die than think. In fact they do, — Bertrand Russell

The rain it raineth on the just,
And also on the unjust fella,
But chiefly on the just because,
The unjust hath the just’s umbrella — Lord Justice Bowen

That it will never come again is what makes life so sweet. — Emily Dickinson

Chase after truth like hell and you’ll free yourself, even though you never touch its coat-tails. — Clarence Darrow

Even if you do learn to speak correct English, whom are you going to speak it to? — Clarence Darrow

It is not the strongest of the species that survives, nor the most intelligent, but the one most responsive to change. — Charles Darwin

History teaches us that men and nations behave wisely once they have exhausted all other alternatives. — Abba Eban

When you think of the long and gloomy history of man, you will find more hideous crimes have been committed in the name of obedience than have ever been committed in the name of rebellion. — C.P. Snow

When two opposite points of view are expressed with equal intensity, the truth does not necessarily lie exactly halfway between them. It is possible for one side to be simply wrong. — Richard Dawkins

Justifying space exploration because we get non-stick frying pans is like justifying music because it is good exercise for the violinists right arm. — Richard Dawkins

You are entitled to your own opinion, but not your own facts. — Anon

The nice thing about being a celebrity is that when you bore people, they think it’s their fault. — Henry Kissenger

The denunciation of the young is a necessary part of the hygiene of older people, and greatly assists in the circulation of their blood. — Logan Pearsall Smith

Skeptical scrutiny is the means, in both science and religion, by which deep insights can be winnowed from deep nonsense. — Carl Sagan

The making of governmental decisions is not a majestic march of great majorities united upon matters of great policy but rather it consists of the steady appeasement of relatively small groups. — Robert Dahl

If all else fails, immortality can always be assured by spectacular error. — John Kenneth Galbraith

Economic forecasting makes astrology look respectable. — John Kenneth Galbraith

The Golden Age, which a blind tradition has hitherto located in the past, is ahead of us. — Henri de Saint-Simon

We all know what we need to do, we just don’t know how to get relected after we’ve done it. — Jean-Claude Juncker on reforms to reduce unemployment.

The power of accurate observation is commonly called cynicism by those who haven’t got it. — George Bernard Shaw

The plural of anecdote is not evidence. — Anon

The fact that some geniuses were laughed at does not imply that all who are laughed at are geniuses. They laughed at Columbus, they laughed at Fulton, they laughed at the Wright brothers. But they also laughed at Bozo the Clown. — Carl Sagan

Extraordinary claims require extraordinary evidence. — Carl Sagan

It is easier to get forgiveness than permission. — Stuart’s Law of Retroaction

I have learned to use the word ‘impossible’ with the greatest caution. — Wernher von Braun

Apparently the deity of a bunch of goat-herding nomads from thousands of years ago doesn’t like it, so it’s got to be stopped. — Abigor

I’m a great believer in luck, and I find the harder I work the more I have of it. — Thomas Jefferson (attributed)

Always do sober what you said you’d do drunk. That will teach you to keep your mouth shut. — Ernest Hemingway

Democracy is the theory that the common people know what they want and deserve to get it good and hard. — H. L. Mencken

For every problem there is a solution which is simple, obvious and wrong. — H. L. Mencken

There are no stupid questions. But there are a lot of inquisitive idiots. — Anon

Problems worthy of attack,
prove their worth by hitting back. — Piet Hein

No wonder that Darwin saw so little difference between human beings and monkeys if all he had to go by was the English. — Manuel Stimulation

One data point does NOT make a trend, (you need at least five). — Alan Gropp

We are like butterflies fluttering for a day and thinking it’s forever. — Carl Sagan

We live in a Newtonian world of Einsteinian physics ruled by Frankenstein logic. — David Russell

Talent hits a target no one else can hit; Genius hits a target no one else can see. — Arthur Schopenhauer

The greatest pleasure in life is doing what people say you cannot do. — Walter Bagehot

A man’s reach should exceed his grasp – or what’s a heaven for? — Robert Browning

It is morally as bad not to care whether a thing is true or not, so long as it makes you feel good, as it is not to care how you got your money as long as you have got it. — Edmund Way Teale

Stupid people are happier than clever ones because they know no better. — Anon

Go to heaven for the climate, and hell for the company. — Mark Twain

Apart from going to prison, no other activity in contemporary life exposes you to such intimidation, ugliness, regimentation, overcrowding and cruel dehumanisation, as the decision to go to an airport. — Stephen Bayley

Serious sport has nothing to do with fair play. It is bound up with hatred, jealousy, boastfulness, disregard for all rules and sadistic pleasure in witnessing violence: in other words it is war minus the shooting. — George Orwell

My definition of an expert in any field is a person who knows enough about what’s really going on to be scared. — PJ Plauger

We tend to overestimate the effect of a technology in the short run and underestimate the effect in the long run. — Roy Amara

To thine own self be true. — William Shakespeare

Engineering is the art of moulding materials we don’t understand, into shapes we cannot precisely model, to withstand forces we cannot properly assess, in such as way that the public has no way to suspect the extent of our ignorance. — Dr. A. R. Dykes

Science flies you to the moon. Religion flies you into buildings. — Victor Stenger

If a million people say a foolish thing, it is still a foolish thing. — Anatole France

When the facts change, I change my mind. What do you do, sir? — John Maynard Keynes

Rational arguments don’t usually work on religious people. Otherwise, there wouldn’t be religious people. — Doris Egan

All models are wrong, but some are useful. — George E. P. Box

Fiction is obliged to stick to possibilities. Truth isn’t. — Mark Twain

I didn’t attend the funeral, but I sent a nice letter saying that I approved of it. — Mark Twain

Unprovided with original learning, unformed in the habits of thinking, unskilled in the arts of composition, I resolved to write a book. — Edward Gibbon

You follow drugs, you get drug addicts and drug dealers. But you start to follow the money, and you don’t know where the fuck it’s gonna take you. — Det. Lester Freamon, The Wire

“Atheist critiques of religious doctrines are largely a waste of effort: Few people believe them in any case; they just say they do” — Daniel Dennet, http://www.nydailynews.com/opinions/2010/10/03/2010-10-03_the_unbelieveable_truth_why_america_has_become_a_nation_of_religious_knownothing.html

“If terrorists are smart enough to make it to the airport without arrest, they will be smart enough to figure out a way to bring weapons aboard a plane.” — Jeffrey Goldberg

“Those who are indebted are not free” — Göran Persson – title of his 1997 book about dealing with the economic crisis and the large government debt in the 1990s

“When you have eliminated the possible, whatever remains, however popular, is bullshit.” — Chris Addison (http://twitter.com/#!/mrchrisaddison) on Homoeopathy.

“Everytime history repeats itself, the price goes up” — Annonymous

“Sit down before fact as a little child, be prepared to give up every preconceived notion, follow humbly wherever and to whatever abysses nature leads, or you shall learn nothing.” — Thomas Huxley

“Religion’s doing what you’re told regardless of what’s right. Morality’s doing what’s right regardless of what you’re told” — DPR Jones

Success is measured not by what you do, but by what you get done. — Seamus Keane

“Never take a hostage you are not prepared to shoot” — Senator Phil Gramm

“If you’re not paying for television, you’re not the customer, you’re the product.” — Jeff Bewkes – head of Time Warner

“That which can be asserted without evidence, can be dismissed without evidence.” — Christopher Hitchens

“I have always found that plans are useless, but planning is indispensable.” — Dwight D. Eisenhower

“The ultimate result of shielding men from the effects of folly is to fill the world with fools” — Herbert Spencer