is said to be in health when the fluids and solids of his body concur to render him robust, to keep his mind in vigour; when each lends mutual aid towards this end. He is said to be in confusion, or in ill health, whenever this tendency is disturbed; when any of the essential parts of his body cease to concur to his preservation, or to fulfil its peculiar functions. This it is that happens in a state of sickness, in which, however, the motion excited in the human machine is as necessary, is regulated by laws as certain, as natural, as invariable, as that which concurs to produce health. Sickness merely produces in him a new order of motion, a new series of action, a new chain of things. Man dies: to him, this appears the greatest confusion he can experience; his body is no longer what it was — its parts no longer concur to the same end — his blood has lost its circulation — he is deprived of feeling — his ideas have vanished — he thinks no more — his desires have fled — death is the epoch, the cessation of his human existence. — His frame becomes an inanimate mass, by the subtraction of those principles by which it was animated; that is, which made it act after a determinate manner: its tendency has received a new direction; its action is changed; the motion excited in its ruins conspires to a new end. To that motion, the harmony of which he calls order, which produced life, sentiment, thought, passions, health, succeeds a series of motion of another species; that, nevertheless, follows laws as necessary as the first; all the parts of the dead man conspire to produce what is called dissolution, fermentation, putrefaction: these new modes of being, of acting, are just as natural to man, reduced to this
