Secrecy has many advantages, for when you tell someone the purpose of any object right away, they often think there is nothing to it.

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.

If one has not read the newspapers for some months and then reads them all together, one sees, as one never saw before, how much time is wasted with this kind of literature.

Daring ideas are like chessmen moved forward; they may be beaten, but they may start a winning game.

Truth is a torch, but a terrific one; therefore we all try to reach it with closed eyes, lest we should be scorched.

We love a girl for very different qualities than understanding. We love her for her beauty, her youth, her mirth, her confidingness, her character, with its faults, caprices and God knows what other inexpressible charms; but we do not love her understanding.

What you desire when young, you have in abundance when old.