Play is as necessary to the perfect development of a child as sunshine is to the perfect development of a plant.

Concentrate . . . for the greatest achievements are reserved for the man of single aim, in whom no rival powers divide the empire of the soul.

Character is a mark cut upon something, and this indelible mark determines the only true value of all people and all their work.

The glow of satisfaction which follows the consciousness of doing our level best never comes to a human being from any other experience.

Talk happiness. The world is sad enough without your woe.

No man can hope to accomplish anything great in this world until he throws his whole soul, flings the force of his whole life, into it. It is not enough simply to have a general desire to accomplish something. There is but one way to do that; and that is, to try to be somebody with all the concentrated energy we can muster.

You must bring every particle of your energy, unanswerable resolution, your best efforts, your persistent industry to your task or the best will not come out of you. You must back up your ambition by your whole nature, by unbounded enthusiasm and a determination to win which knows no failure.