The Law of Similars

Organon Aphorism §20

This spirit-like power to alter man’s state of health (and hence to cure diseases) which lies hidden in the inner nature of medicines can in itself never be discovered by us by a mere effort of reason; it is only by experience of the phenomena it displays when acting on the state of health of man that we can become clearly cognizant of it.

Samuel Hahnemann, Organon of Medicine, 6th edition, translated by William Boericke (1922, public domain). Checked word for word against the 1922 printing in October 2026.

Study notes for this aphorism are not published yet. They appear here once a homeopath has reviewed them.