Invention breeds invention. No sooner is the electric telegraph devised than gutta-percha, the very material it requires, is found. The aeronaut is provided with gun-cotton, the very fuel he wants for his balloon.

Science always goes abreast with the just elevation of the man, keeping step with religion and metaphysics; or, the state of science is an index of our self-knowledge.

The finest wits have their sediment.

The measure of mental health is the disposition to find good everywhere.

To map out a course of action and follow it to an end requires some of the same courage that a soldier needs.

Women, more than all, are the element and kingdom of illusion. Being fascinated, they fascinate.

You cannot sincerely try to help another without helping yourself