In the greek doctrine of ethos, man should try to balance rational behavior, and pathos, or behavior driven by
emotion.
answer here

in the Greek Doctrine of Ethos, man should try to balance between Logos or rational behavior and Pathos or behavior driven by emotion.

Explanation

The Greek doctrine believes that music has a magical power that could talk directly to our emotions. According to the doctrine of Ethos, the right kind of music has power to shape the character of a person including healing the sick. A person listening to music will have the emotion imitated by the music.