Titles are too "thin" for the nineteenth century.

A tool is but the extension of a man's hand, and a machine is but a complex tool. And he that invents a machine augments the power of a man and the well-being of mankind.

The God of the Bible is a moral monstrosity.

See to it that each hour's feelings, and thoughts, and actions are pure and true; then will your life be such.

No man can tell if he is rich or poor by turning to his ledger. It is the heart that makes a man rich. He is rich according to what he is, not according to what he has.

There is a temperate zone in the mind, between luxurious indolence and exacting work; and it is to this region, just between laziness and labor, that summer reading belongs.

Men will let you abuse them if only you will make them laugh.