Follow humbly wherever and to whatever abyss Nature leads, or you shall learn nothing. Every great advance in natural knowledge has involved the absolute rejection of authority. All truth, in the long run, is only common sense clarified. Zeal without knowledge is fire without light. The rung of a ladder was never meant to rest upon, but only to hold a man's foot long enough to enable him to put the other somewhat higher. 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. Perhaps the most valuable result of all education is the ability to make yourself do the thing you have to do, when it ought to be done, whether you like it or not. It is the first lesson that ought to be learned and however early a man's training begins, it is probably the last lesson that he learns thoroughly. It is because the body is a machine that education is possible. Education is the formation of habits, a super inducing of an artificial organization upon the natural organization of the body. Every great advance in natural knowledge has involved the absolute rejection of authority. If a little knowledge is dangerous, where is the man who has so much as to be out of danger? | 
