When you're rich, you don't have friends; you just have endless acquaintances.

Never try to have the last word. You might get it.

Expertise in one field does not carry over into other fields. But experts often think so. The narrower their field of knowledge the more likely they are to think so.

Everybody lies about sex.

Nothing could go wrong because nothing had...I meant "nothing would." No - Then I quit trying to phrase it, realizing that if time travel ever became widespread, English grammar was going to have to add a whole new set of tenses to describe reflexive situations - conjugations that would make the French literary tenses and the Latin historical tenses look simple.

The greatest productive force is human selfishness.

Premenstrual Syndrome: Just before their periods women behave the way men do all the time.