Whoever wishes to keep a secret must hide the fact that he possesses one.

How to please the public - that's the test, But nowadays I find I'm in a fix; I know they're not accustomed to the best, But they've all read so much they know the tricks. How can we give then something fresh and new That's serious, but entertaining too?

Even dirt glitters when the sun is shining upon it

Love, whose power youth feels, is not suitable for the elderly, just as little as anything that presupposes productivity. It is rare that productivity lasts through the years.

A life without love, without the presence of the beloved, is nothing but a mere magic-lantern show. We draw out slide after slide, swiftly tiring of each, and pushing it back to make haste for the next.

The close and thoughtful observer more and more learns to recognize his limitations. He realizes that with the steady growth of knowledge more and more new problems keep on emerging.

We see only what we know.