As long as man remains an inquiring animal, there can never be a complete unanimity in our fundamental beliefs. The more diverse our paths, the greater is likely to be the divergence of beliefs.

The main force used in the evolving world of humanity has hitherto been applied in the form of war.

Man is by nature competitive, combative, ambitious, jealous, envious, and vengeful.

A drunkard is one thing, and a temperate man is quite another.

Reason has not tamed desire: it is as strong as ever.

We shall never understand the ethical system taught by Jesus unless we realize that he was a Jew, not only by birth, but that he lived and taught as a Jew; the Sermon on the Mount was addressed to his distracted fellow nationals.

Whichever theory we adopt to give a rational explanation of human existence, that theory must take into account and explain the mental nature we see at work in all modern communities.