Science is the father of knowledge, but opinion breeds ignorance.

I will use treatment to help the sick according to my ability and judgment, but never with a view to injury and wrongdoing. Neither will I administer a poison to anybody when asked to do so, nor will I suggest such a course. Similarly, I will not give to a woman a pessary to cause abortion. I will keep pure and holy both my life and my art.

Science begets knowledge; opinion, ignorance.

The chief virtue that language can have is clearness, and nothing detracts from it so much as the use of unfamiliar words.

There is one common flow, one common breathing, all things are in sympathy.

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.

I will give no deadly medicine to any one if asked, nor suggest any such counsel; and in like manner I will not give to a woman a pessary to produce abortion.