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.
Isocrates
Because of Plato's attacks on the sophists, Isocrates' school — having its roots, if not the entirety of its mission, in rhetoric, the domain of the sophists — came to be viewed as unethical and deceitful. Yet many of Plato's criticisms are hard to substantiate in the actual work of Isocrates; at the end of "Phaedrus", Plato even shows Socrates praising Isocrates (though some scholars have taken this to be sarcasm). Isocrates saw the ideal orator as someone who must possess not only rhetorical gifts, but also a wide knowledge of philosophy, science, and the arts. He promoted the Greek ideals of freedom, self-control, and virtue; in this he influenced several Roman rhetoricians, such as Cicero and Quintilian, and influenced the core concepts of liberal arts education.