You were probably educated in the conventional economic theories of your period which were magnificent and most ingenious, but--if you will pardon my saying so--all wrong.

Pain is the basic mechanism built into us by millions of years of evolution which safeguards us by warning when something threatens our survival.

The best thing about space travel is that it made it possible to go elsewhere.

Love is that condition in which the happiness of another person is essential to your own.

It may take endless wars and unbearable population pressure to force-feed a technology to the point where it can cope with space. In the universe, space travel may be the normal birth pangs of an otherwise dying race. A test. Some races pass, some fail.

Place your clothes and weapons where you can find them in the dark.

Sex should be friendly. Otherwise stick to mechanical toys; it's more sanitary.