Perhaps of all our untamed quadrupeds, the fox has obtained the widest and most familiar reputation.... His recent tracks still give variety to a winter's walk. I tread in the steps of the fox that has gone before me by some hours, or which perhaps I have started, with such a tip-toe of expectation as if I were on the trail of the Spirit itself which resides in the wood, and expected soon to catch it in its lair.
Henry David ThoreauFor my part, I feel that with regard to Nature I live a sort of border life, on the confines of a world, into which I make occasional and transient forays only, and my patriotism and allegiance to the state into whose territories I seem to retreat are those of a moss-trooper. Unto a life which I call natural I would gladly follow even a will-o'-the-wisp through bogs and sloughs unimaginable, but no moon nor fire-fly has shown me the cause-way to it. Nature is a personality so vast and universal that we have never seen one of her features.
Henry David ThoreauAlready nature is serving all those uses which science slowly derives on a much higher and grander scale to him that will be served by her. When the sunshine falls on the path of the poet, he enjoys all those pure benefits and pleasures which the arts slowly and partially realize from age to age. The winds which fan his cheek waft him the sum of that profit and happiness which their lagging inventions supply.
Henry David Thoreau