René Descartes Quotes

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

I suppose therefore that all things I see are illusions; I believe that nothing has ever existed of ...

Booty Butt, Booty Butt, Booty Butt Cheeks

[About Pierre de Fermat] It cannot be denied that he has had many exceptional ideas, and that he is ...

Common sense is the most widely shared commodity in the world, for every man is convinced that he is...

...reading good books is like engaging in conversation with the most cultivated minds of past centur...

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

And thus, the actions of life often not allowing any delay, it is a truth very certain that, when it...

although we very clearly see the sun, we ought not therefore to determine that it is only of the siz...

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

I revered our theology, and aspired as much as any one to reach heaven: but being given assuredly to...

The dreams we imagine when we are asleep should not in any way make us doubt the truth of the though...

For, occupied incessantly with the consideration of the limits prescribed to their power by nature, ...

And, in fine, of false sciences I thought I knew the worth sufficiently to escape being deceived by ...

When I turn my mind's eye upon myself, I understand that I am a thing which is incomplete and depend...

Whence then come my errors? They come from the sole fact that since the will is much wider in its ra...

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

Some years ago I was struck by the large number of falsehoods that I had accepted as true in my chil...

Thus the perception of the infinite is somehow prior in me to the perception of the finite, that is,...

Gratitude is a species of love, excited in us by some action of the person for whom we have it, and ...

...we ought not meanwhile to make use of doubt in the conduct of life.

...the greater objective (representative) perfection there is in our idea of a thing, the greater al...

...we ought also to consider as false all that is doubtful.

So blind is the curiosity by which mortals are possessed, that they often conduct their minds along ...

I desire to live in peace and to continue the life I have begun under the motto 'to live well you mu...

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

that the grace of fable stirs the mind"...and..."that the perusal of excellent books is, as it were,...

I took especially great pleasure in mathematics because of the certainty and the evidence of its arg...

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

Let whoever can do so deceive me, he will never bring it about that I am nothing, so long as I conti...

But in my opinion, all things in nature occur mathematically.

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

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

To live without philosophizing is in truth the same as keeping the eyes closed without attempting to...

With me, everything turns into mathematics.

There is nothing more ancient than the truth.

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

Perfect numbers like perfect men are very rare.

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.

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

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

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

I think therefore I am.

I think therefore I am.

Illusory joy is often worth more than genuine sorrow.

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

I hope that posterity will judge me kindly, not only as to the things which I have explained, but al...

The two operations of our understanding, intuition and deduction, on which alone we have said we mus...