For how do we know that the thoughts which occur in dreaming are false rather than those others which we experience when awake, since the former are often not less vivid and distinct than the latter?

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

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

I think; therefore I am.

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.

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

Desire awakens only to things that are thought possible.