According to Confucius, "Marriage is the union (of representatives) of two different surnames, in friendship and in love, in order to continue the prosperity of former ages and to produce those who shall preside at the sacrifices of heaven and earth."
Sing Ging Su, (1922) The Chinese Family System, p.54-55 ISBN 0554506351
The Chinese Family System, p. 54-55. ISBN 0554506351.
I'll post the link to the book separately.