Everything in excess is opposed to nature.
Illnesses do not come upon us out of the blue. They are developed from small daily sins against Nature. When enough sins have accumulated, illnesses will suddenly appear.
Whenever a doctor cannot do good, he must be kept from doing harm.
The patient must combat the disease along with the physician.
Old people have fewer diseases than the young, but their diseases never leave them.
I swear... to hold my teacher in this art equal to my own parents; to make him partner in my livelihood; when he is in need of money to share mine with him; to consider his family as my own brothers and to teach them this art, if they want to learn it, without fee or indenture.