If I wished a boy to know something about the arts and sciences, for instance, I would not pursue the common course, which is merely to send him into the neighborhood of some professor, where anything is professed and practised but the art of life; — to survey the world through a telescope or a microscope, and never with his natural eye; to study chemistry, and not learn how his bread is made, or mechanics, and not learn how it is earned; to discover new satellites to Neptune, and not detect the motes in his eyes, or to what vagabond he is a satellite himself; or to be devoured by the monsters that swarm all around him, while contemplating the monsters in a drop of vinegar. Which would have advanced the most at the end of a month — the boy who had made his own jackknife from the ore which he had dug and smelted, reading as much as would be necessary for this — or the boy who had attended the lectures on metallurgy at the Institute in the meanwhile, and had received a Rodgers’ penknife from his father? Which would be most likely to cut his fingers?

Thoreau, Walden
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