You may fetter my leg, but Zeus himself cannot get the better of my free will

This free will business is a bit terrifying anyway. It's almost pleasanter to obey, and make the most of it.

I?m pleading under my own free will.

There's no free will here. Oedipus acts out the script. How can we blame him?

He's paying the amount that's on his lease. He entered into that contract of free will.

The question of free will is insoluble on strictly psychological grounds