We can never have enough of nature. We must be refreshed by the sight of inexhaustible vigor, vast and titanic features, the sea-cost with its wrecks, the wilderness with its living and its decaying trees, the thunder-cloud, and the rain which lasts three weeks and produces freshets. We need to witness our own limits transgressed, and some life pasturing freely where we never wander.

Autor: Henry David Thoreau