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.

Audacity, always audacity - soundest principal of strategy.

A long and wicked life followed by five minutes of perfect grace gets you into Heaven. An equally long life of decent living and good works followed by one outburst of taking the name of the lord in vain- then have a heart attack at that moment and be damned for eternity. Is that the system?

At least once every human should have to run for his life, to teach him that milk does not come from supermarkets, that safety does not come from policemen, that 'news' is not something that happens to other people. He might learn how his ancestors lived and that he himself is no different--in the crunch his life depends on his agility, alertness, and personal resourcefulness.

We came here for a small, informal meeting. We find you've turned it into a circus. Well, if you're going to have a circus, you've got to have elephants.

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

That old saw about the early bird just proves that the worm should have stayed in bed.