Who would have ever heard of Theodore Roosevelt outside of his immediate community if he had only half committed himself? The great secret of his career was that he has flung his whole life with all the determination and energy he could muster.

We advance on our journey only when we face our goal, when we are confident and believe we are going to win out.

Every great man has become great, every successful man has succeeded, in proportion as he has confined his powers to one particular channel.

Man becomes a slave to his constantly repeated acts. What he at first chooses, at last compels.

The best thing about giving of ourselves is that what we get is always better than what we give. The reaction is greater than the action.

Obstacles are like wild animals. They are cowards but they will bluff you if they can. If they see you are afraid of them... they are liable to spring upon you; but if you look them squarely in the eye, they will slink out of sight.

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.