Organon of Medicine

APHORISM 4:

He is likewise a preserver of health if he knows the things that derange health and cause disease, and how to remove them from persons in health.

Prasad Rasal:
In this aphorism, Dr Samuel Hahnemann has added one more most important qualitative requirement of the Homoeopathic Physician & has written in separate aphorism because in fact this is the basic one which every Homoeopathic Physician should develop.
He expects that the Homoeopathic Physician should not be only a Healer but at first, he should be the Preserver of the health. Dr Hahnemann says that if He knows that any person is having certain bad habits which can create the disorder in that person, it id his duty to tell or advise that fellow. There are number of peoples who are having different habits, addictions which can create the disorders in them. It is his sole duty to advise them in a proper way & remove their addictions or habits in order to preserve their health. He should not wait till the disease will develop & then he will treat it.