The Hippocratic Oath is an oath of ethics historically taken by physicians. It is one of the most widely known of Greek medical texts. In its original form, it requires a new physician to swear, by a number of healing gods, to uphold specific ethical standards. The oath is the earliest expression of medical ethics in the Western world, establishing several principles of medical ethics which remain of paramount significance today. These include the principles of medical confidentiality and non-maleficence. As the seminal articulation of certain principles that continue to guide and inform medical practice, the ancient text is of more than historic and symbolic value. It is enshrined in the legal statutes of various jurisdictions, such that violations of the oath may carry criminal or other liability beyond the oath's symbolic nature. The original oath was written in Ionic Greek, between the fifth and third centuries BC. Although it is traditionally attributed to the Greek doctor Hippocrates and it is usually included in the Hippocratic Corpus, some modern scholars do not regard it as having been written by Hippocrates himself. Text of the oath Earliest surviving copy The oldest partial fragments of the oath date to circa AD 275. The oldest extant version dates to roughly the 10th–11th century, held in the Vatican Library. A commonly cited version, dated to 1595, appears in Koine Greek with a Latin translation. In this translation, the author translates "πεσσὸν" to the Latin "fœtum." Below is the Hippocratic Oath, in Greek, from the 1923 Loeb edition, followed by the English translation: I swear by Apollo Healer, by Asclepius, by Hygieia, by Panacea, and by all the gods and goddesses, making them my witnesses, that I will carry out, according to my ability and judgment, this oath and this indenture. 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; to impart precept, oral instruction, and all other instruction to my own sons, the sons of my teacher, and to indentured pupils who have taken the Healer’s oath, but to nobody else. I will use those dietary regimens which will benefit my patients according to my greatest ability and