"We know nothing of the principle of health, the positive of which pathology is the negative, except from observation and experience. And nothing but observation and experience will teach us the ways to maintain or to bring back the state of health. It is often thought that medicine is the curative process. It is no such thing; ... nature alone cures. ... And what [true] nursing has to do ... is to put the patient in the best condition for nature to act upon him."

-- Florence Nightingale

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