A handy short definition of almost all science fiction might read: realistic speculation about possible future events, based solidly on adequate knowledge of the real world, past and present, and on a thorough understanding of the nature and significance of the scientific method.

Never appeal to a man's 'better nature.' He may not have one. Invoking his self-interest gives you more leverage.

I believe in - I am proud to belong to - the United States.

Writing is not necessarily something to be ashamed of, but do it in private and wash your hands afterwards.

English is the largest of human tongues, with several times the vocabulary of the second largest language -- this alone made it inevitable that English would eventually become, as it did, the lingua franca of this planet, for it is thereby the richest and most flexible -- despite its barbaric accretions . . . or, I should say, because of its barbaric accretions. English swallows up anything that comes its way, makes English out of it.

Humoring them costs nothing and adds to happiness in a world in which happiness is always in short supply.

The 3-legged stool of understanding is held up by history, languages, and mathematics. Equipped with those three you can learn anything you want to learn. But if you lack any one of them you are just another ignorant peasant with dung on your boots.