“It is because the body is a machine that education is possible. Education is the formation of habits, a superinducing of an artificial organization upon the natural organization of the body.”
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Of moral purpose I see no trace in Nature. That is an article of exclusively human manufacture and very much to our credit.
Science is simply common sense at its best, that is, rigidly accurate in observation, and merciless to fallacy in logic.
Try to learn something about everything and everything about something.
The chess-board is the world, the pieces are the phenomena of the universe, the rules of the game are what we call the laws of Nature. The player on the other side is hidden from us.