And as it is the most generous souls who have most gratitude, it is those who have most pride, and who are most base and infirm, who most allow themselves to be carried away by anger and hatred.

The chief cause of human errors is to be found in the prejudices picked up in childhood.

The entire method consists in the order and arrangement of the things to which the mind's eye must turn so that we can discover some truth.

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?

We call infinite that thing whose limits we have not perceived, and so by that word we do not signify what we understand about a thing, but rather what we do not understand.

There is nothing more ancient than the truth.

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