By the data to date, there is only one animal in the Galaxy dangerous to man -- man himself. So he must supply his own indispensable competition. He has no enemy to help him.

There is no such thing as 'social gambling.' Either you are there to cut the other bloke's heart out and eat it -- or you're a sucker. If you don't like this choice -- don't gamble.

Teaching causes people to go into situations from which they cannot escape, except by thinking. Do not handicap children by making their lives easy.

I never do anything I don't want to do. Nor does anyone, but in my case I am always aware of it.

My old man says when it's time to be counted, the important thing is to be man enough to stand up.

Figure out for yourself what you want to be really good at, know that you'll never really satisfy yourself that you've made it, and accept that that's okay.

The only thing privacy laws accomplish is making the bugs smaller.