do no harm

do no harm

1. (ethics, medicine) To perform no actions which will be injurious or in any way unfavorable to another person, regardless of whether one does anything of positive benefit for that other person.
   • 1889, Wilkie Collins, chapter 51, in The Legacy of Cain:

     "Oh, make your mind easy! I shall do no harm, if I do no good."

   • 1999 March 29, William Safire, "Essay," New York Times (retrieved 18 Aug 2014):

     [G]et government out of the gambling business. . . . These officials pervert public policy, which should at least do no harm.

   • 2005, Patricia Illingworth, Trusting Medicine: The Moral Costs of Managed Care, Routledge, →ISBN, p. 100:

     First, consider the moral minimum, do no harm.

   • 2008 Dec. 20, Judith D. Schwartz, "Making Hospitals Greener — and Patients Healthier," Time (retrieved 18 Aug 2014):

     A doctor's principle code is, "First, do no harm."

   • 2012, A. Bame Nsamenang (ed.), Handbook of African Educational Theories and Practices, →ISBN, p. 100 (Google preview):

     Hence, some people consider non-maleficence to be the most basic of all the cardinal principles of ethics; it lays down the least minimum condition for ethical correctness, as if to say: "even if you would not do good, at least do no harm."

• In medicine, often used in the imperative mood as a formulation of the Hippocratic Oath.
• In philosophy, often used in the imperative mood as a formulation of the moral minimum.

• beneficence
• nonmaleficence

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