Rene Descartes

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

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

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

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

Illusory joy is often worth more than genuine sorrow.

Illusory joy is often worth more than genuine sorrow.

I hope that posterity will judge me kindly, not only as to the things which I have explained, but also read more

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.

I think; therefore I am.

I think; therefore I am.