Next to the assumption of power was the responsibility of relinquishing it.

Nurture your minds with great thoughts. To believe in the heroic makes heroes.

With words we govern men.

Two nations between whom there is no intercourse and no sympathy; who are as ignorant of each other's habits, thoughts, and feelings, as if they were dwellers in different zones, or inhabitants of different planets. The rich and the poor.

Read no history: nothing but biography, for that is life without theory.

Nine-tenths of existing books are nonsense, and the clever books are the refutation of that nonsense.

In the hands of a genius, engineering turns to magic, philosophy becomes poetry, and science pure imagination.