This document discusses ethics in surgical practice. It begins by defining ethics as meaning character. The four basic principles of ethics discussed are autonomy, beneficence, non-maleficence, and justice. Autonomy refers to a patient's ability to make their own healthcare choices. Beneficence means that surgeons should act in the best interest of patients. Non-maleficence, or "do no harm," establishes that surgeons should avoid injuring patients. Justice relates to fairness and equality in healthcare. The document outlines several ethical issues surgeons may face, including informed consent, confidentiality, end-of-life care, and maintaining standards in surgical research.