John Ruskin was an Englishman who lived from 1819 to 1900. He was an artist known primarily for his writing on art and nature, among other topics. After hearing that his book, The Elements of Drawing, was one of the first books on how to draw, I had to take a look. It is a little wordy and dated, but there’s much good in it. I don’t know if this Ruskin quote is from that book or not, but I love it!
“Let two persons go out for a walk; the one a good sketcher, the other having no taste of the kind. Let them go down a green lane. There will be a great difference in the scene as perceived by the two individuals. The one will see a lane and trees; he will perceive the trees to be green, though he will think nothing about it; he will see that the sun shines, and that it has a cheerful effect; and that’s all! But what will the sketcher see? His eye is accustomed to search into the cause of beauty, and penetrate the minutest parts of loveliness. He looks up, and observes how the showery and subdivided sunshine comes sprinkled down among the gleaming leaves overhead, till the air is filled with the emerald light. He will see here and there a bough emerging from the veil of leaves, he will see the jewel brightness of the emerald moss and the variegated and fantastic lichens, white and blue, purple and red, all mellowed and mingled into a single garment of beauty. Then come the cavernous trunks and the twisted roots that grasp with their snake-like coils at the steep bank, whose turfy slope is inlaid with flowers of a thousand dyes. Is not this worth seeing? Yet if you are not a sketcher you will pass along the green lane, and when you come home again, have nothing to say or to think about it, but that you went down such and such a lane.”