I don’t believe it. Prove it to me and I still won’t believe it.

No amount of experimentation can ever prove me right; a single experiment can prove me wrong.

Doubt is a pain too lonely to know that faith is his twin brother.

I have written too much history to have faith in it; and if anyone thinks I’m wrong, I am inclined to agree with him.

I told you I’m not going to criticize my successor. I’ll just tell you that there are people at Gitmo that will kill American people at a drop of a hat and I don’t believe that persuasion isn’t going to work. Therapy isn’t going to cause terrorists to change their mind.

I am persuaded, you will permit me to observe, that the path of true piety is so plain as to require but little political direction.

Base souls have no faith in great individuals.

Such is the feebleness of humanity, such is its perversity, that doubtless it is better for it to be subject to all possible superstitions, as long as they are not murderous, than to live without religion.

If one has the answers to all the questions – that is the proof that God is not with him. It means that he is a false prophet using religion for himself. The great leaders of the people of God, like Moses, have always left room for doubt. You must leave room for the Lord, not for our certainties; we must be humble.

If you are ever in doubt as to whether to kiss a pretty girl, always give her the benefit of the doubt.

Doubt in my tradition is something that is very helpful. Because of doubt, you can thirst more and you will get a higher kind of proof.

I would love to encourage all my teammates to eat the best way they possibly can. High school athletes. Now, that’s not the way our food system in America is set up. It’s very different. They have a food pyramid, and I disagree with that. I disagree with a lot of things that people tell you to do.

The lady doth protest too much, methinks.

There are GMO skeptics more in Europe maybe than in other places, but not exclusively.

A lot of people, because of my contempt for the false consolations of religion, think of me as a symbolic public opponent of that in extremis. And sometimes that makes me feel a bit alarmed, to be the repository of other people’s hope.

I’m pretty calculating. I take stuff that I know appeals to people’s bad sides and match it up with stuff that appeals to their good sides.

Suspicion is far more to be wrong than right; more often unjust than just. It is no friend to virtue, and always an enemy to happiness.

The highest proof of the spirit is love. Love the eternal thing which can already on earth possess as it really is.

If a man will begin with certainties, he shall end in doubts, but if he will content to begin with doubts, he shall end in certainties.

Doubt is not a pleasant condition, but certainty is absurd.

You know, my faith is one that admits some doubt.

A fanatic is a man who consciously over compensates a secret doubt.

I don’t consider myself to be that credulous.

Modest doubt is called the beacon of the wise.

It is hard for the ape to believe he descended from man.

One has to secrete a jelly in which to slip quotations down people’s throats – and one always secretes too much jelly.

A young man who wishes to remain a sound atheist cannot be too careful of his reading.

The great enemy of the truth is very often not the lie, deliberate, contrived and dishonest, but the myth, persistent, persuasive and unrealistic.

If an elderly but distinguished scientist says that something is possible, he is almost certainly right; but if he says that it is impossible, he is very probably wrong.

Thaw with her gentle persuasion is more powerful than Thor with his hammer. The one melts, the other breaks into pieces.

Reviews condition people. At the end of the day, a lot of human minds are malleable. They can be easily shaped with strong words.

Would you bet your paycheck on a weather forecast for tomorrow? If not, then why should this country bet billions on global warming predictions that have even less foundation?

Buddhism is not a creed, it is a doubt.

No one was more shocked or angry than I was when we didn’t find the weapons. I had a sickening feeling every time I thought about it. I still do.

Today we say that the law of relativity is supposed to be true at all energies, but someday somebody may come along and say how stupid we were.

Arguments are to be avoided: they are always vulgar and often convincing.

Medicine heals doubts as well as diseases.

People are skeptical of many televangelists, and I’m sensitive to that.

No man ever quite believes in any other man. One may believe in an idea absolutely, but not in a man.

I am a nuclear physicist by training and a deeply committed Christian. I don’t have any doubt in my own mind about God who created the entire universe. But I don’t adhere to passages that so and so was created 4,000 years before Christ, and things of that kind.

Reacting in anger or annoyance will not advance one’s ability to persuade.

She believed in nothing; only her skepticism kept her from being an atheist.

There is nothing makes a man suspect much, more than to know little.

I know that the arts are important. I’m not denying that, but I can’t associate myself with all the claptrap that goes on around it.

My dear wife has, I would say, probably never opened a religious book, and seems to be one of those people to whom the whole idea is utterly remote and absurd.

Faith is different from proof; the latter is human, the former is a Gift from God.

What convinces is conviction. Believe in the argument you’re advancing. If you don’t you’re as good as dead. The other person will sense that something isn’t there, and no chain of reasoning, no matter how logical or elegant or brilliant, will win your case for you.

People love conspiracy theories.

When doubt comes against us, we have to lift up the shield of faith. We do this when we open our mouth and say what God’s Word says, rather than grumbling and complaining about the problem.

No sadder proof can be given by a man of his own littleness than disbelief in great men.

So near is falsehood to truth that a wise man would do well not to trust himself on the narrow edge.

Nobody believes in completely unadulterated capitalism.

The greatest achievements of the human mind are generally received with distrust.

I’m an atheist.

The world embarrasses me, and I cannot dream that this watch exists and has no watchmaker.

Faith keeps many doubts in her pay. If I could not doubt, I should not believe.

All in all, I just don’t trust journalists – and I don’t think it’s a good practice for me to trust journalists.

People’s minds are changed through observation and not through argument.

I’m skeptical of any mission that has advertisers at its centerpiece.

If you would convince a man that he does wrong, do right. Men will believe what they see.

A statement is persuasive and credible either because it is directly self-evident or because it appears to be proved from other statements that are so.