Jealousy is a disease, love is a healthy condition. The immature mind often mistakes one for the other, or assumes that the greater the love, the greater the jealousy – in fact, they are almost incompatible; one emotion hardly leaves room for the other.

Obscurity is usually the refuge of incompetence.

Writing is not necessarily something to be ashamed of, but do it in private and wash your hands afterward.

Anybody can see a pretty girl. An artist can look at a pretty girl and see the old woman she will become. A better artist can look at an old woman and see the pretty girl she used to be.

Don't ever become a pessimist a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events.

One man's "magic" is another man's engineering.

Ability is a wonderful thing, but its value is greatly enhanced by dependability. Ability implies repeatability and accountability.

The earth is simply too small and fragile a basket for the human race to keep all its eggs in.

Man is what he is, a wild animal with the will to survive, and so far the ability, against all competition.

Citizenship is an attitude, a state of mind, an emotional conviction that the whole is greater than the part. and that the part should be humbly proud to sacrifice itself that the whole may live.