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Rene Descartes quotes

I am accustomed to sleep and in my dreams to imagine the same things that lunatics imagine when awake.

It is only prudent never to place complete confidence in that by which we have even once been deceived.

It is not enough to have a good mind; the main thing is to use it well.

Divide each difficulty into as many parts as is feasible and necessary to resolve it.

The senses deceive from time to time, and it is prudent never to trust wholly those who have deceived us even once.

An optimist may see a light where there is none, but why must the pessimist always run to blow it out?

I think; therefore I am.

You just keep pushing. You just keep pushing. I made every mistake that could be made. But I just kept pushing.

If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.

Whenever anyone has offended me, I try to raise my soul so high that the offense cannot reach it.

A state is better governed which has few laws, and those laws strictly observed.

The reading of all good books is like a conversation with the finest minds of past centuries.

Except our own thoughts, there is nothing absolutely in our power.

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

Perfect numbers like perfect men are very rare.

Each problem that I solved became a rule, which served afterwards to solve other problems.

The greatest minds are capable of the greatest vices as well as of the greatest virtues.

Nothing is more fairly distributed than common sense: no one thinks he needs more of it than he already has.

Everything is self-evident.

When it is not in our power to follow what is true, we ought to follow what is most probable.