Show-Me the Argument

Aristotle thought so. To quote him (I’ll put the authenticity of the Magna Moralia) to the side for now):

Socrates claimed that it is not in our power to be worthy or worthless men. If, he said, you were to ask anyone whether he would like to be just or unjust, no one would choose injustice, and it is the same with courage and cowardice and other virtues. Evidently any who are vicious will not be vicious voluntarily. Neither, in consequence, will they be voluntarily virtuous (MM 1187a7).

And speaking of Socrates:

All wrong action is involuntary. Whether we are good or bad depends not on ourselves. No one wills unrighteous, cowardice, etc., but only righteousness etc. (MM 1187a).

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