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

Formal courtesy between husband and wife is even more important than it is between strangers.

There is no way that writers can be tamed and rendered civilized. Or even cured.

There are two ways of forming an opinion. One is the scientific method; the other, the scholastic. To the scientific mind, experimental proof is all-important, and theory is merely a convenience in description, to be junked when it no longer fits. To the academic mind, authority is everything, and facts are junked when they do not fit theory.

Whether the authorities be invaders or merely local tyrants, the effect of such [gun control] laws is to place the individual at the mercy of the state, unable to resist.

Expertise in one field does not carry over into other fields. But experts often think so. The narrower their field of knowledge the more likely they are to think so.

Rarest of all is the man who can and does reason at all times, quickly, accurately, inclusively, despite hope or fear or bodily distress, without egocentric bias or thalmic disturbance, with correct memory, with clear distinction between fact, assumption, and non-fact.