Lead your child by the hand to the great scenes of nature; teach him on the mountain and in the valley. There he will listen better to your teaching; the liberty will give him greater force to surmount difficulties. But in these hours of liberty it should be nature that teaches rather than you. Do not allow yourself to prevail for the pleasure of success in your teaching; or to desire in the least to proceed when nature diverts him; do not take away in the least the pleasure which she offers him. Let him completely realize that it is nature that teaches, and that you, with your art, do nothing more than walk quietly at her side. When he hears a bird warble or an insect hum on a leaf, then cease your talk; the bird and the insect are teaching; your business is then to be silent.