Ah! Silence is golden. When I was in my observatory at Belle-croix, I dared not move as the silence opened to me a course of discoveries. The families of the wood were then in action. It was the silence that permitted me, immovable as a tree trunk, to see the deer in their hiding-place and at their toilet, to observe the habits of the field rat, of the otter, of the salamander, those fantastic amphibious animals. He who lives in the silence becomes the center of a world; a little more and I could imagine myself the sun of a small creation, if my studies had not recalled to me that I had so much trouble to reproduce a poor tree or a cluster of rushes.