First, the physician at Harvard, lecturing on Hippocrates:
The widest of all generalizations in the work of Hippocrates is this: as a rule, sick people recover without treatment.
—Lawrence J. Henderson (1878-1942), Harvard lectures, quoted in The Practical Cogitator, Charles P. Curtis, Jr. and Ferris Greenslet, editors (p. 287).
Second, Montaigne in his tower:
Let things take their course. Nature’s scheme, that takes care of fleas and moles, also takes care of men—if they will have the same patience to let themselves be governed that fleas and moles have. There is no use in our shouting “Giddap”; that will indeed make us hoarse, but not get us ahead. Nature’s scheme is proud and pitiless. Our fear and despair disgust it and stop it from helping us, instead of inviting it to come to our aid. Nature is obliged to let both disease and health run their course. As for letting itself be corrupted in favour of the one to the prejudice of the other’s right, it will not do so, for it would then fall into disorder. Follow Nature, in God’s name, follow it! It leads those who follow. Those who will not follow, it drags along, with their rage and their medicine too. Order a purge for your brain; it will be better employed there than on your stomach.
—Michel de Montaigne (1533-1592), Essays, Book II, Ch. 37, “Of the Resemblance of Children to Fathers.” Adapted from the translation by Donald Frame.