How often misused words generate misleading thoughts.

A function to each organ, and each organ to its own function, is the law of all organization.

In societies of low civilization, there is no money.

Education has for its object the formation of character. To curb restive propensities, to awaken dormant sentiments, to strengthen the perceptions, and cultivate the tastes, to encourage this feeling and repress that, so as finally to develop the child into a man of well proportioned and harmonious nature, this is alike the aim of parent and teacher.

Music ministers to human welfare more than any other art.

Rightness expresses of actions, what straightness does of lines; and there can no more be two kinds of right action than there can be two kinds of straight lines.

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.