Rene Descartes

Rene Descartes

René Descartes (31 March 1596 – 11 February 1650) was a French philosopher, mathematician, and scientist. Dubbed the father of modern western philosophy, much of subsequent Western philosophy is a response to his writings, which are studied closely to this day.

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

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

Travelling is almost like talking with those of other centuries.

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

Illusory joy is often worth more than genuine sorrow.

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

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

There is nothing so strange and so unbelievable that it has not been said by one philosopher or another.

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

Perfect numbers like perfect men are very rare.

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

The two operations of our understanding intuition and deduction on which alone we have said we must rely in the acquisition of knowledge.

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

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

I think, therefore I am.

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

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

Everything is self-evident.

Common sense is the most fairly distributed thing in the world for each one thinks he is so well-endowed with it that even those who are hardest to satisfy in all other matters are not in the habit of desiring more of it than they already have.

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

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.

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

I am indeed amazed when I consider how weak my mind is and how prone to error.

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

In order to improve the mind we ought less to learn than to contemplate.

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

One cannot conceive anything so strange and so implausible that it has not already been said by one philosopher or another.

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

I hope that posterity will judge me kindly not only as to the things which I have explained but also to those which I have intentionally omitted so as to leave to others the pleasure of discovery.