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.
Socratic Puzzles
Nozick disclaims the title "political philosopher" and characterizes his "Anarchy, State, and Utopia" (1974) as "an accident" that came about because he was "getting nowhere" working on the problem of free will. He discusses his reverence for Socrates, and his intellectual debts to Sidney Morgenbesser and Carl Hempel. At "the most consequential party I ever attended," someone told him about a problem posed by a physicist in California, William Newcomb. Nozick brought this problem into the literature of decision theory ("rational choice theory"). He describes the influence of decision theory on "Anarchy, State, and Utopia"'s derivation of the state from individuals' actions, and its game-theoretic analysis of utopia; and especially in "The Nature of Rationality" (1993), where he proposed a "decision value" alternative to maximizing expected utility and also extended decision theory to issues about rational belief.