when faced with a problem you do not understand, do any part of it you do understand, then look at it again.

Then I glanced at the ring on my finger. The Snake That Eats Its Own Tail, Forever and Ever. I know where I came from—but where did all you zombies come from? I felt a headache coming on, but a headache powder is one thing I do not take. I did once—and you all went away. So I crawled into bed and whistled out the light. You aren’t really there at all. There isn’t anybody but me—Jane—here alone in the dark. I miss you dreadfully!

Sin lies only in hurting others unnecessarily. All other "sins" are invented nonsense.

When a place gets crowded enough to require ID's, social collapse is not far away. It is time to go elsewhere. The best thing about space travel is that it made it possible to go elsewhere.

A society that gets rid of all its troublemakers goes downhill.

The two highest achievements of the human mind are the twin concepts of "loyalty" and "duty". Whenever these twin concepts fall into disrepute, get out of there fast! You may possibly save yourself, but it is too late to save that society. It is doomed.

There ain't no such thing as a free lunch." A Libertarian Movement slogan - The Moon Is a Harsh Mistress, 1907.