Like all great teachers he knew that a picture is worth a thousand words and that people learn most quickly by doing something or seeing something done.

Most Americans do not like poetry. We may respect it, but we do not enjoy it.

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.

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

The art of invective resembles the art of boxing. Very few fights are won with the straight left. It is too obvious, and it can betoo easily countered. The best punches, like the best pieces of invective in this style, are either short-arm jabs, unexpectedly rapid and deadly; or else one-two blows, where you prepare your opponent with the first hit, and then, as his face comes forward, connect with your other fist: one, two. Both are effective; but they can be administered only by a real artist, with a real wish to knock his enemy out.

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.

Bad teaching wastes a great deal of effort, and spoils many lives which might have been full of energy and happiness.