《礼记·王制》
五十岁的老人就可以参加在乡学中举行的敬老宴会，六十岁的老人就可以参加在王宫小学中举行的宴会，七十岁的老人就可以参加在大学举行的宴会。诸侯国也是如此。
五十养于乡，六十养于国，七十养于学，达于诸侯。
When a man reached the age of fifty, he could participate in the banquet for the elders held in the country school; at sixty, he could participate in the banquet held in the primary school in the royal palace; and at seventy, he could participate in the banquet held in the university. The feudal states also followed this practice.