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.
Sam Harris
Harris says the idea of free will "cannot be mapped on to any conceivable reality" and is incoherent. According to Harris, science "reveals you to be a biochemical puppet." People's thoughts and intentions, Harris says, "emerge from background causes of which we are unaware and over which we exert no conscious control." Every choice we make is made as a result of preceding causes. These choices we make are determined by those causes, and are therefore not really choices at all. Nevertheless Harris maintains that the absence of free will does not erode the distinction between voluntary and involuntary actions, arguing that intentions tell a lot about the global attributes of a person's brain. Harris argues that this realization about the human mind does not undermine morality or diminish the importance of social and political freedom, but it can and should change the way we think about some of the most important questions in life.