“THERE are three ways of being an unfilial son,” argued Mencius, an ancient Confucian philosopher.

History, "a three unfilial, without issue," saying that many of unfilial conduct, but no children, Nobody inherited status, family name, this is the most serious matter.

For example, the family culture of Chinese traditional culture, the longitudinal veins in weight, "the author for three, without unfilial to big," said.