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

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

The mob that hails the man on horseback, the Caesars and conquering heroes, does not retain its freedoms for long.

A liberal education will impart an awareness of the amazing and precious complexity of human relationships. Since those relationships are violated more often out of insensitiveness than out of deliberate intent, whatever increases sensitiveness of perception and understanding humanizes life.

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

The difference between science and religion is that the former wishes to get rid of mysteries whereas the latter worships them.

[A]nti-Semitism was rife in almost all varieties of socialism.