In character-building it is most necessary that one should learn how to face the world, the world where one meets with sorrows and troubles and pleasures and pains. It is very difficult for one to hide them from the world, and at the same time a wise person is not meant to show all he feels nor to show at every moment what he feels. The ordinary person, like a machine, reacts in answer to every outer influence and inner impulse; and in this way he very often cannot keep to the law of the music of life.