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

Religious tolerance has developed more as a consequence of the impotence of religions to impose their dogmas on each other than as a consequence of spiritual humility in the quest for understanding first and last things.

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.

Nonetheless, it still remains true that as a set of cognitive beliefs, religious doctrines constitute a speculative hypothesis of an extremely low order of probability.

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.

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

Life has meaning for anyone who takes an interest in it.