Even the paradise of fools is not an unpleasant abode while it is inhabitable.

A man may build himself a throne of bayonets, but he cannot sit on it.

The aim of education is the knowledge, not of facts, but of values.

Our test is infallible. Whatever view of reality deepens our sense of the tremendous issues of life in the world wherein we move, is for us nearer the truth than any view which diminishes that sense.

Worry is interest paid on trouble before it comes due.

To become a popular religion, it is only necessary for a superstition to enslave a philosophy.

Over-population is a phenomenon connected with the survival of the unfit, and it is a mechanism which has created conditions favourable to the survival of the unfit and the elimination of the fit.