親の恩は子で送る
Meanings
1
one's debt to one's parents is best repaid by giving them grandchildren
Proverb expressing the traditional idea that the greatest way to repay parental kindness is to have children of one's own, continuing the family line.
As the saying goes, 'one's debt to one's parents is best repaid by giving them grandchildren,' but the form of filial piety varies from person to person.