If men use their liberty in such a way as to surrender their liberty, are they thereafter any the less slaves? If people by a plebiscite elect a man despot over them, do they remain free because the despotism was of their own making?

No phrase can convey the idea of surprise so vividly as opening the eyes and raising the eyebrows. A shrug of the shoulders would lose much by translation into words.

Of all the knowledge, that most worth having is knowledge about health! The first requisite of a good life is to be a healthy person.

The "Creed of Christendom" is alien to my nature, both emotional and intellectual.

Progress, therefore, is not an accident, but a necessity…It is a part of nature.

This survival of the fittest which I have here sought to express in mechanical terms, is that which Mr. Darwin has called "natural selection", or the preservation of favoured races in the struggle for life.

To play billiards well was a sign of an ill-spent youth