I study myself more than any other subject. That is my metaphysics, that is my physics.

I may indeed very well happen to contradict myself; but truth, as Demades said, I do not contradict.

Arts and sciences are not cast in a mould, but are found and perfected by degrees, by often handling and polishing.

It is in the enjoyment and not in mere possession that makes for happiness.

I find that the best virtue I have has in it some tincture of vice.

Were I to live my life over again, I should live it just as I have done. I neither complain of the past, nor do I fear the future.

I had rather complain of ill-fortune than be ashamed of victory.