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...which does not tend entirely and uniquely toward this: that he may be a prudent man, skilled in correctly moving nature? For first he learns to speak, to talk, to say, to discuss, to count, to measure, and to live well. Toward what and for what purpose? Surely so that by speaking, saying, discussing, counting, measuring, and living well, he may eventually manufacture for himself instruments fit and accommodated for moving nature well. But how will he move nature through nature unless he has it thoroughly examined and known within creatures? Therefore, he takes these intermediate instruments for moving nature well from the Physicists. For he will not be able to effect that very thing—to move nature—without the world, the home of all creatures. In the world he considers the world, both that higher and GREATER the Macrocosm or universe, and this lower and LESSER the Microcosm or human body. He studiously investigates their corresponding Analogy to each other in all things. He scrutinizes the secrets of things by the benefit of Fire. He explores the natures of diseases so that he might finally move Nature through nature when it has been greatly weakened and almost oppressed. When he achieves this with skillful medicating, the PHYSICIAN CONSULTED BY NATURE cannot help but be a prudent man skilled in moving nature well. I HAVE SPOKEN.
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All of Medicine is focused on action, not at all on contemplation. Therefore, to subtly dispute, declaim, or quarrel about natural things is not to practice medicine.
Medicine is an art, for it generates something. reference to Aristotle's Ethics, book 6, chapter 4. And its end is a work. references to Scaliger and Galen. II. And it is the art of healing well. It consists entirely in therapeutike therapeutics, the branch of medicine concerned with cures. reference to Hippocrates. It preserves health and drives away diseases. reference to Aëtius. III. Therefore, the word "Medicine" is properly referred to the curative part. IV. He is truly a Physician who is a therapeutes tōn kamnontōn a healer of the sick. reference to Plato's Republic. V. An army is worth as much as its General, says Florus. So also, all medical instruments, all herbs, metals, juices, Magisteries concentrated chemical extracts, Elixirs, and so on, are worth only as much as the Physician. For all these are not the aids themselves, but only the material of the aids. VI. They become aids only when they receive their own form or nature...
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