Everything is self-evident.

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

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

There is a great difference between mind and body insomuch as body is by nature always divisible, and the mind is entirely indivisible.

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

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

We never understand a thing so well,and make it our own, as when we have discovered it for ourselves.