"What is a clean circle, simple life, soft eyes and sincere heart?"

It means you won't just add any strangers.

A clean circle is to know friends who have social relations with you.

On the surface, a simple life means a frugal life, but in a deep sense, it means less pursuit of material enjoyment and keeping a relaxed, quiet and happy mood.

Soft eyes show that this person's heart is warm and loving. Eyes are the windows of his soul. Soft eyes show that he likes or loves the object he looks at.

Inner piety means that I treat people and things around me sincerely and sincerely.