Obsession is the wellspring of genius and madness.

I have seen people rude by being over-polite.

Travelling through the world produces a marvellous clarity in the judgment of men. We are all of us confined and enclosed within ourselves, and see no farther than the end of our nose.

We need to interpret interpretations more than to interpret things.

In my youth I studied for ostentation; later, a little to gain wisdom; now, for recreation; never for gain.

I speak to the paper, as I speak to the first person I meet.

We are all of us richer than we think we are.