Wind and thunder: the image of Increase.
Thus the superior man:
If he sees good, he imitates it;
If he has faults, he rids himself of them.

While observing how thunder and wind increase and strengthen each other, a man can not the way to self-increase and self-improvement. When he discovers good in others, he should imitate it and thus make everything on earth his own. If he perceives something bad in himself, let him rid himself of it. In this way he becomes free of evil. This ethical change represents the most important increase of personality.