I have never been impressed by the formal schools of ethics.

Remember this: once the human race is established on more than one planet and especially, in more than one solar system, there is no way now imaginable to kill off the human race.

A "critic" is a man who creates nothing.

To stay young requires unceasing cultivation of the ability to unlearn old falsehoods.

Hate always sells well, but for repeat trade and the long pull happiness is sounder merchandise.

A little more money won't do you any good - because daughters can use up ten percent more than a man can make in any normal occupation, regardless of the amount.

The most ridiculous concept ever perpetrated by Homo Sapiens is that the Lord God of Creation, Shaper and Ruler of the Universes, wants the saccharine adoration of his creations, that he can be persuaded by their prayers, and becomes petulant if he does not receive this flattery. Yet this ridiculous notion, without one real shred of evidence to bolster it, has gone on to found one of the oldest, largest and least productive industries in history.