1,085 Quotes by Robert A. Heinlein

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.

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.

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

Obscurity is usually the refuge of incompetence.

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.