Divide each difficulty at hand into as many pieces as possible and as could be required to better solve them.

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

There is a little gland in the brain in which the soul exercises its functions in a more particular way than in the other parts.

Nothing comes out of nothing.

The only thing that I know, is that I know nothing

I can doubt everything, except one thing, and that is the very fact that I doubt. Simply put - I think, therefore I am

Even the mind depends so much on temperament and the disposition of one's bodily organs that, if it is possible to find a way to make people generally more wise and more skilful than they have been in the past, I believe that we should look for it in medicine. It is true that medicine as it is currently practiced contains little of much use.