A period of high civilization is one in which thoughts fly freely from mind to mind, from one country to another-yes, from the past into the present.

The young do not demand omniscience. They know it is unattainable. They do demand sincerity.

A teacher must believe in the value and interest of his subject as a doctor believes in health.

Wherever there are beginners and experts, old and young, there is some kind of learning going on, some kind of teaching. We are all pupils and we are all teachers.

Many of the twisted minds and crippled characters in the world were made by careless parents who kept their children away from knives and fires, but put permanent scars on their souls.

The teacher's chief difficulty is poverty. He (or she) belongs to a badly paid profession. He cannot dress and live like a workman, but he is sometimes paid as little as an unskilled laborer.

History is a strange experience. The world is quite small now; but history is large and deep. Sometimes you can go much farther by sitting in your own home and reading a book of history, than by getting onto a ship or an airplane and traveling a thousand miles.