Hippocrates developed a medical ethos known as the Hippocratic Oath. One of the key tenets of the Oath is: "I will use those dietary regimens which will benefit my patients according to my greatest ability and judgement, and I will do no harm or injustice to them." Others have simplified this part of the Oath to the principle of non-maleficence ("do no harm") and the principle of ___________________ ("benefit your patient").