It is necessary to the happiness of man that he be mentally faithful to himself. Infidelity does not consist in believing or in disbelieving; it consists in professing to believe what he does not believe.
Happiness is always a by-product. It is probably a matter of temperament, and for anything I know it may be glandular. But it is not something that can be demanded from life, and if you are not happy you had better stop worrying about it and see what treasures you can pluck from your own brand of unhappiness.
Happier of happy though I be, like them I cannot take possession of the sky, mount with a thoughtless impulse, and wheel there, one of a mighty multitude whose way and motion is a harmony and dance magnificent.