And first of all he flees the too common contrariety of amusing himself with his thought. Thought is a tool, with its own proper function: it isn't a toy. Let us take an example. Here is the studio of a painter. The implements are all in place: everything indicates that this assemblage of means is arranged with view to an end. Throw the room open to apes. They will climb on the benches, swing from the cords, rig themselves in draperies, coif themselves with slippers, juggle with brushes, nibble the colors, and pierce the canvases to see what is behind the paint. I don't question their enjoyment; certainly they must find this kind of exercise extremely interesting. But an atelier is not made to let monkeys loose in. No more is thought a ground for acrobatic evolutions. A man worthy of the name, thinks as he is, as his tastes are: he goes about it with his whole heart, and not with that fitful and sterile curiosity which, under pretext of observing and noting everything, runs the risk of never experiencing a deep and true emotion or accomplishing a right deed. Another habit in urgent need of correction, ordinary attendant on conventional life, is the mania for examining and analyzing one's self at every turn. I do not invite men to neglect introspection and the examination of conscience. The endeavor to understand one's own mental attitudes and motives of conduct is an essential element of good living. But quite other is this extreme vigilance, this incessant observation of one's life and thoughts, this dissecting of one's self, like a piece of mechanism. It is a waste of time, and goes wide of the mark. The man who, to prepare himself the better for walking, should begin by making a rigid anatomical examination of his means of locomotion, would risk dislocating something before he had taken a step. You have what you need to walk with, then forward! Take care not to fall, and use your forces with discretion. Potterers and scruple-mongers are soon reduced to inaction. It needs but a glimmer of common sense to perceive that man is not made to pass his life in a self-centered trance.