The secret of happiness is in knowing this: that we live by the law of expenditure. We find greatest joy, not in getting, but in expressing what we are. There are tides in the ocean of life, and what comes in depends on what goes out. The currents flow inward only where there is an outlet. Nature does not give to those who will not spend; her gifts are loaned to those who will use them. Empty your lungs and breathe. Run, climb, work, and laugh; the more you give out, the more you shall receive. Be exhausted, and you shall be fed. Men do not really live for honors or for pay; their gladness is not in the taking and holding, but in the doing, the striving, the building, the living. It is a higher joy to teach than to be taught. It is good to get justice, but better to do it; fun to have things, but more to make them. The happy man is he who lives the life of love, not for the honors it may bring, but for the life itself.