§ 156
There is, however, almost no homoeopathic medicine, be it ever so suitably chosen, that, especially if it should be given in an insufficiently minute dose, will not produce, in very irritable and sensitive patients, at least one trifling, unusual disturbance, some slight new symptom while its action lasts; for it is next to impossible that medicine and disease should cover one another symptomatically as exactly as two triangles with equal sides and equal angles.
But this (in ordinary circumstances) unimportant difference will be easily done away with by the potential activity (energy) of the living organism, and is not perceptible by patients not excessively delicate; the restoration goes forward, notwithstanding, to the goal of perfect recovery, if it be not prevented by the action of heterogeneous medicinal influences upon the patient, by errors of regimen or by excitement of the passions.