That agent is called good, who has cast off attachment, who is free from egotistic talk, who is possessed of courage and energy, and unaffected by success or ill-success. That agent is called passionate, who is full of affections, who wishes for the fruit of actions, who is covetous, cruel, and impure, and feels joy and sorrow. That agent is called dark, who is without application, void of discernment, headstrong, crafty, malicious, lazy, melancholy, and slow.