Idealism, alas, does not protect one from ignorance, dogmatism, and foolishness.

No one who accepts the sovereignty of truth can be a foot soldier in a party or movement. He will always find himself out of step.

Everyone who remembers his own education remembers teachers, not methods and techniques. The teacher is the heart of the educational system.

I was guilty of judging capitalism by its operations and socialism by its hopes and aspirations; capitalism by its works and socialism by its literature.

The easiest rationalization for the refusal to seek the truth is the denial that truth exists.

Before impugning an opponent's motives, even when they legitimately may be impugned, answer his arguments.

Stupidity is sometimes the greatest of historical forces.