One of the first conditions of happiness is that the link between Man and Nature shall not be broken.

Nature knows no indecencies; man invents them.

Nature does not complete things. She is chaotic. Man must finish, and he does so by making a garden and building a wall.

Man selects only for his own good: Nature only for that of the being which she tends.

There is no result in nature without a cause; understand the cause and you will have no need of the experiment.

We behold the face of nature bright with gladness.