Free will in antiquity
In Plato's Gorgias (and in the Protagoras 345c4-e6), Socrates argues that no one does wrong willingly, one of the most famous doctrines to be associated with him. When framed in modern (Western) terms, the implication is that it is ignorance, rather that free individual agency, that is responsible for morally wrong actions.
Voluntary euthanasia
The term euthanasia comes from the Greek words "eu"-meaning good and "thanatos"-meaning death, which combined means “well-death” or "dying well". Hippocrates mentions euthanasia in the Hippocratic Oath, which was written between 400 and 300 BC The original Oath states: “To please no one will I prescribe a deadly drug nor give advice which may cause his death.” Despite this, the ancient Greeks and Romans generally did not believe that life needed to be preserved at any cost and were, in consequence, tolerant of suicide in cases where no relief could be offered to the dying or, in the case of the Stoics and Epicureans, where a person no longer cared for his life.