Is it difficult to be a good person? It's not hard to do! What's the old saying?

Liu Bei of the Three Kingdoms said (Pei Songzhi's Notes on the Biography of the Three Kingdoms Shu Shu): "Don't do little evil, don't do little good".

This sentence is about being a man, as long as it is "evil", even if it is a small evil; Do it as long as it is good, even if it is small.