Blaise Pascal Quotes

It is not certain that everything is certain, neither is it certain that everything is uncertain.

My personal philosophy is, you can be sure of nothing.

There is only one thing about which I am certain, and that is that there is very little about which one can be certain.

It is not certain that everything is uncertain.

Who never doubted, never half believed. Where doubt is, there truth is - it is her shadow.

But is all this true?" said Brutha. Didactylos shrugged. "Could be. Could be. We are here and it is now. The way I see it is, after that, everything tends towards guesswork." "You mean you don't KNOW it's true?" said Brutha. "I THINK it might be," said Didactylos. "I could be wrong. Not being certain is what being a philosopher is all about.

Except in pure mathematics, nothing is known for certain (although much is certainly false).

I am no lover of disorder and doubt as such. Rather do I fear to lose truth by this pretension to possess it already wholly.

Everyone who observes himself doubting observes a truth, and about that which he observes he is certain; therefore he is certain about a truth. Everyone therefore who doubts whether truth exists has in himself a truth on which not to doubt.... Hence one who can doubt at all ought not to doubt the existence of truth.

No one knows anything for sure.

Is there any knowledge in the world which is so certain that no reasonable man could doubt it?

Where doubt there truth is - 'tis her shadow.

Doubt is long-winded. Certainty is brief.

What is not surrounded by uncertainty cannot be the truth.

Truth is something that we can attempt to doubt, and then perhaps, after much exertion, discover that part of the doubt is not justified.

It is not that there are no certainties, it is that it is an absolute certainty that there are no certainties.

If you tried to doubt everything you would not get as far as doubting anything. The game of doubting itself presupposes certainty.

I had therefore to remove knowledge, in order to make room for belief.

The first precept was never to accept a thing as true until I knew it as such without a single doubt.

We can be absolutely certain only about things we do not understand.

Any truth is better than indefinite doubt.

Faith is Doubt.

Doubt is not an agreeable condition, but certainty is an absurd one.

Not to be absolutely certain is, I think, one of the essential things in rationality.