Violate the law and nursing ethics. Euthanasia refers to stopping treatment or using drugs for patients who cannot be treated, so that patients can die painlessly, which violates the law and nursing ethics. The theory and practice of euthanasia have a long history. In order to stay healthy and energetic, Spartans executed children who were born sick. Aristotle expressed his support for this approach in his works. In the Republic, Plato agreed to commit suicide to alleviate incurable pain.