It takes two to create a heaven, but hell can be accomplished by one.

The basic of all morality is duty, a concept with the same relation to group that self-interest has to individual.

Patriotism is not 'my country right or wrong'; patriotism means loving the ideals for which America stands and having the courage to speak up when these ideals are distorted for personal or political gain. The American government was instituted to be the servant of the people, not our master.

Age is not an accomplishment, and youth is not a sin.

Like every living thing its prime characteristic is a blind, unreasoned instinct to survive.

A community where everyone is a ruthless murderer, with handy access to death-dealing devices, is a very polite community.

Abstract knowledge is always useful, sooner or later.