孔子有过“五不祥”的提法,语出《孔子家语·正论解第四十一》。一天,哀公问孔子:“在房子的东面增盖房子算不算不吉祥?”孔子趁机讽谏,指出“不祥有五”:“夫损人而益己,身之不祥也;弃老取幼,家之不祥也;释贤用不肖,国之不祥也;老者不教,幼者不学, Confucius had ”five ominous “ formulation, the language ”Confucius home is positive solution, the forty-first.“ One day, mourners asked Confucius: ”Is it not an auspicious occasion to add a house to the east of the house?“ Confucius took the opportunity to remonstrate and point out that ”there are five“: ” Abandoned old take young, the home of ominous; Interpretation useless, the country is also ominous; the old do not teach, the young do not learn,