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.

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.

Conquer yourself rather than the world.

So blind is the curiosity by which mortals are possessed, that they often conduct their minds along unexplored routes, having no reason to hope for success, but merely being willing to risk the experiment of finding whether the truth they seek lies there.

... regard this body as a machine which, having been made by the hand of God, is incomparably better ordered than any machine that can be devised by man, and contains in itself movements more wonderful than those in any machine. ... it is for all practical purposes impossible for a machine to have enough organs to make it act in all the contingencies of life in the way in which our reason makes us act.

In the matter of a difficult question it is more likely that the truth should have been discovered by the few than by the many.

There is nothing so strange and so unbelievable that it has not been said by one philosopher or another.