Reason - Quotes
The reason why fear is so powerful is because you believe it to be stronger than you.
Skepticism is the agent of reason against organized irrationalism - and is therefore one of the keys to human social and civic decency.
Very few people do anything creative after the age of thirty-five. The reason is that very few people do anything creative before the age of thirty-five.
Human reason can neither predict nor deliberately shape its own future. Its advances consist in finding out where it has been wrong.
Mathematics is not a deductive science - that`s a cliche. When you try to prove a theorem, you don`t just list the hypotheses, and then start to reason. What you do is trial and error, experimentation, guesswork.
No man burdens his mind with small matters unless he has some very good reason for doing so.
To argue with a man who has renounced the use and authority of reason [...] is like giving medicine to the dead.
He, who will not reason, is a bigot; he, who cannot, is a fool; and he, who dares not, is a slave.
In the long run nothing can withstand reason and experience, and the contradiction religion offers to both is only too palpable.
I do not pretend to be able to prove that there is no God. I equally cannot prove that Satan is a fiction. The Christian god may exist; so may the gods of Olympus, or of ancient Egypt, or of Babylon. But no one of these hypotheses is more probable than any other: they lie outside the region of even probable knowledge, and therefore there is no reason to consider any of them.
Authority has every reason to fear the skeptic, for authority can rarely survive in the face of doubt.
When a man finds a conclusion agreeable, he accepts it without argument, but when he finds it disagreeable, he will bring against it all the forces of logic and reason.
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.