Robert A. Heinlein

A man can face known danger. But the unknown frightens him.

Robert A. Heinlein

Always listen to experts. They’ll tell you what can’t be done, and why. Then do it.

Robert A. Heinlein

Anything worth doing is worth overdoing.

Robert A. Heinlein

Everything is theoretically impossible, until it is done.

Robert A. Heinlein

If you don’t like yourself, you can’t like other people.

Robert A. Heinlein

Luck is a tag given by the mediocre to account for the accomplishments of genius.

Robert A. Heinlein

A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity.

Robert A. Heinlein

Don’t handicap your children by making their lives easy.

Robert A. Heinlein

Find out what you want to do, then do it. Never talk yourself into doing something you don’t want.

Robert A. Heinlein

Finish what you start. Keep submitting until it sells.

Robert A. Heinlein