The Master said, "Is it not pleasant to learn with a constant perseverance and application? "Is it not delightful to have friends coming from distant quarters? "Is he not a man of complete virtue, who feels no discomposure though men may take no note of him?" The philosopher Yu said, "They are few who, being filial and fraternal, are fond of offending against their superiors. There have been none, who, not liking to offend against their superiors, have been fond of stirring up confusion.