On two subjects the overwhelming majority of people regarded their own opinions as Absolute Truth, and sincerely believed that anyone who disagreed with them was immoral, outrageous, sinful, sacrilegious, offensive, intolerable, stupid, illogical, treasonable, actionable, against the public interest, ridiculous, and obscene. The two subjects were (of course) sex and religion.

One could write a history of science in reverse by assembling the solemn pronouncements of highest authority about what could not be done and could never happen.

Spacemen - men who work in space, pilots and jetmen and astrogators and such - are men who like a few million miles of elbow room.

Secrecy begets tyranny.

Make money, lose money - who cares? The idea is to enjoy it.

Morals - all correct moral laws - derive from the instinct to survive. Moral behavior is survival behavior above the individual level.

When it don’t rain, the roof don’t leak; when it rains, I can’t fix it nohow.