Runaway son, a shining jewel; runaway daughter, tarnished

Similar sayings:

The house with an old grandparent harbors a jewel The house with an old grandparent harbors a jewel
The father in praising the son extols himself The father in praising the son extols himself
A dog won’t forsake his master because of poverty; a son never deserts his mother because of her homely appearance A dog won’t forsake his master because of poverty; a son never deserts his mother because of her homely appearance
Easier to rule a nation than a son Easier to rule a nation than a son
If a son is uneducated, his father is to blame If a son is uneducated, his father is to blame

Chinese sayings and proverbs