So with natural history. For my own part I find the life-histories of the wild creatures about me, their ways of getting on in the world, their joys, their fears, their successes, their failures, their instincts, their intelligence, intensely interesting without any ulterior considerations. I am not looking for ethical or poetic values. I am looking for natural truths. I am less interested in the sermons in stones than I am in the life under the stones. The significance of the metamorphosis of the grub into the butterfly does not escape me, but I am more occupied with the way the caterpillar weaves her cocoon and hangs herself up for the winter than I am in this lesson. I had rather see a worm cast its skin than see a king crowned. I had rather see Phoebe building her mud nest than the preacher writing his sermon. I had rather see the big moth emerge from her cocoon--fresh and untouched as a coin that moment from the die--than the most fashionable "coming out" that society ever knew. The first song sparrow or bluebird or robin in spring, or the first hepatica or arbutus or violet, or the first clover or pond-lily in summer--must we demand some mystic password of them? Must we not love them for their own sake, ere they will seem worthy of our love? To convert natural facts into metaphysical values, or into moral or poetic values--in short, to make literature out of science--is a high achievement, and is worthy of Emerson at his best, but to claim that this is their sole or main use is to push idealism to the extreme. The poet, the artist, the nature writer not only mixes his colors with his brains, he mixes them with his heart's blood. Hence his pictures attract us without doing violence to nature. We will not deny Emerson his right to make poetry out of nature; we bless him for the inspiration he has drawn from this source, for his "Wood-notes," his "Humble-Bee," his "Titmouse," his "May-Day," his "Sea-Shore," his "Snow-Storm," and many other poems. But we must "quarrel" with him a little, to use one of his favorite words, for seeming to undervalue the facts of natural science, as such, and to belittle the works of the natural historian because he does not give us poetry and lessons in morals instead of botany and geology and ornithology, pure and simple. "Everything," he says, "should be treated poetically--law, politics, housekeeping, money. A judge and a banker must drive their craft poetically, as well as a dancer or a scribe. That is, they must exert that higher vision which causes the object to become fluid and plastic." "If you would write a code, or logarithms, or a cook-book, you cannot spare the poetic impulse." "No one will doubt that battles can be fought poetically who reads Plutarch or Las Casas."