The Ethical Fallacy is the idea that moral behavior helps to solve the problem of free will.

For many philosophers, free decisions are thought to be moral decisons. They fail to distinguish between ordinary responsibilities (fiduciary, financial, leadership) and moral responsibility.

This was a commonplace in ancient times. The Scholastics thought that we were free when our decisions were good, and slaves to our passions when our decisions were evil.

Modern thinkers who argue similarly include Robert Kane, who argues that actions for which we have "ultimate responsibility" are only the great moral decisions we make, and Susan Wolf, who argues that our freedom must be "within reason" and thus decisions must be made with full knowledge of "the True and the Good."