Mencius 7B.36

Mencius said, 'Zeng Xi was fond of sheep-dates, and his son, the philosopher Zeng, could not bear to eat sheep-dates.' Gong Sun Chou asked, saying, 'Which is best, minced meat and broiled meat, or sheep-dates?'

Mencius said, 'Mince and broiled meat, to be sure.'

Gong Sun Chou went on, 'Then why did the philosopher Zeng eat mince and broiled meat, and would not eat sheep-dates?'

Mencius answered, 'For mince and broiled meat there is a common liking, while that for sheep-dates was peculiar. We avoid the name, but do not avoid the surname. The surname is common; the name is peculiar.'