I'm always suspicious of disinterested interest.

Political tags - such as royalist, communist, democrat, populist, fascist, liberal, conservative, and so forth - are never basic criteria. The human race divides politically into those who want people to be controlled and those who have no such desire.

There is no way that writers can be tamed and rendered civilized or even cured. The only solution known to science is to provide the patient with an isolation room, where he can endure the acute stages in private and where food can be poked in to him with a stick.

Duty is a debt you owe to yourself to fulfill obligations you have assumed voluntarily.

The power to tax, once conceded, has no limits; it continues until it destroys.

With eternity to draw on there could be no reason for hurrying - 'hurry' was not a concept in Martian.

Animals can be driven crazy by placing too many in too small a pen. Homo sapiens is the only animal that voluntarily does this to himself.