Aphorism 189 | Organon of Medicine By Dr. Hahnemann
And yet very little reflection will suffice to convince us that no external malady (not occasioned by some important injury from without) can arise, persist or even grow worse without some internal cause, without the co-operation of the whole organism, which must consequently be in a diseased state. It could not make its appearance at all without the consent of the whole of the rest of the health, and without the participation of the rest of the living whole (of the vital force that pervades all the other sensitive and irritable parts of the organism); indeed, it is impossible to conceive its production without the instrumentality of the whole (deranged) life; so intimately are all parts of the organism connected together to form an indivisible whole in sensation and functions. No eruption on the lips, no whitlow can occur without previous and simultaneous internal ill-health.
-Dr. Samuel Hahnemann