"One thing I have been trying to drill into you," said his tutor, "is that education is not a thing of books or studies or formulae of any kind. It is the whole world; particularly the world of thought, feeling, and expression. It is not a flower in the garden of life; it is the garden itself, with its flowers, and its perfumes, and its sunshine and rain. Yes, and its weeds, and droughts, and insects and worms. There is a phase of education in the public meeting, whether its purpose be to discuss the municipal tax rate or the flora of the Rockies. You can't afford to miss any subject; but still less can you afford to miss the audiences that are interested in any subject. They are deeper than any book. There are all kinds of audiences. There is the violent audience, and the mysterious audience, and the sentimental audience, and the destructive audience, and the whimsical audience, and the hysterical audience,--and every other kind. And the funny thing is that they are all made up of much the same people. Take a sentimental audience, for instance; a few passes, and you have an hysterical audience. It is a difference of moods. We don't think enough about moods. We are all subject to moods, and yet we judge a new acquaintance by the mood he happens to be in--and the mood we happen to be in--at the time of making the acquaintanceship. Another day, in other moods, he would make a quite different impression--if the impression already made could be effaced. I have a theory that the world's sorrow is largely a matter of moods. I don't deny the sorrow, nor the need for sorrow, nor the reality of it, but I do believe there is a mood of happiness which even the deepest sorrows cannot suppress. And the more you study people the more you will understand moods, and, perhaps, be master of your own. And the man who can, by force of his own will, determine the mood in which he will live, is master of the world."