meaning
Ask: ask. All: the harmony between "knowledge" and "Yu". Don't complain about setbacks, but first find out the crux of the problem from yourself and try to correct it.
source
Mencius Gongsun Chou: A benevolent man is like a shot. The shooter was right about himself and then made a mistake. He didn't complain that he won, but found it himself.
"On Mencius' Sentence Reading Louzhang": People who do wrong things are all seeking for their own happiness and returning to the world.
example
Human beings should pursue themselves, be kind to everything, seek eternal happiness in harmony and seek complete spiritual liberation.