According to Baidu Encyclopedia, if a gentleman has a physical examination, it is often the Chinese word of Kangcang Xunzi Daopian. Interestingly, a gentleman should always check himself and reflect on himself, just as he often makes mistakes. People are biased, so they don't know themselves all their lives? Sages see forgiveness without saying anything, villains love overflow, and relatives pity without saying anything. People are biased and don't know it. Therefore, gentlemen often have physical examinations.