Wherever you may find the inventor, you may give him wealth or you may take from him all that he has; and he will go on inventing. He can no more help inventing that he can help thinking or breathing.

Leave the beaten track behind occasionally and dive into the woods. Every time you do you will be certain to find something you have never seen before.

Ordinary people who know nothing of phonetics or elocution have difficulties in understanding slow speech composed of perfect sounds, while they have no difficulty in comprehending an imperfect gabble if only the accent and rhythm are natural.

When one door closes, another one opens.

Man is an animal which, alone among the animals, refuses to be satisfied by the fulfillment of animal desires.

Before anything else, preparation is the key to success.

Neither the Army nor the Navy is of any protection, or very little protection, against aerial raids.