1. Forget yourself in some interest outside of yourself.
   He who is turned inward, thinking of himself, admiring himself, complaining that he is ill-treated; he who thinks he ought to have more of the rewards of life—he is the one who does not begin to live.
   
   
2. Do not drift, but steer.
   The man who has no aim higher than himself drifts; he has nothing by which to steer, nothing toward which to direct his life. To forget yourself is the secret of life; to forget yourself in some worthy purpose outside of yourself.
   
   
3. Do with your might what your hand finds to do.
   Whatever his hand found to do, he did it with his might. He did not wait till to-morrow to do something, but did what his hand found to-day. He did not worry about possible future evils, nor torment himself about an irrevocable past. He put his whole soul into the present moment, the work just at hand.
   
   
4. Trust in God and your own soul.
   Pursuing his own way quietly, trusting in the intuitions of his soul, saying his own words, not those of any one else, accepting the present moment with its immediate inspiration, and believing in an overhanging heaven and an infinite spiritual presence, [he] did with his might what his hand found to do, and saw the great world come round to him.

(Source: artofmanliness.com)