人之视已，如见其肺肝然，则可益矣。
Upon meeting up with a gentleman, he will deftly disguise his faults and exhibit his goodness.
When people look at him, however, they see right through him, so what's the use?”
此谓诚于中，形于外。
Sincerity and honesty will show themselves outwardly.
富润屋，德润身，心广体胖，故君子必诚其意。
Just as wealth can renovate a house, virtue can renovate a person—making the mind expansive and the body at ease.
This is why a gentleman must make his thoughts sincere.