Don't ever become a pessimist... a pessimist is correct oftener than an optimist, but an optimist has more fun, and neither can stop the march of events.

If an elderly respected expert in a given field tells you that something can be done he is almost certainly right. If an elderly respected expert in a given field tells you that something is impossible, he is almost certainly wrong.

Be wary of strong drink. It can make you shoot at tax collectors... and miss.

All men are created unequal.

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

The Stone trembled and threw herself outward bound, toward Saturn. In her train followed hundreds and thousands and hundreds of thousands of thousands of restless, rolling Stones . . . to Saturn . . . to Uranus, to Pluto . . . rolling on out to the stars . . . outward bound to the ends of the Universe.

In a mature society, 'civil servant' is semantically equal to 'civil master.'