The sum of all that makes a just man happy
Consists in the well-choosing of his wife:
And there, well to discharge it, does require
Equality of years, of birth, of fortune;
For beauty being poor, and not cried up
By birth or wealth, can truly mix with neither.
And wealth, when there's such difference in years,
And fair descent, must make the yoke uneasy.
--_Massinger._
1312