Thirukkural 61

பெறுமவற்றுள் யாமறிவது இல்லை அறிவறிந்த மக்கட்பேறு அல்ல பிற.

Perumavatrul yaamarividathu illai arividarindha makkatperu alla pitra.

Of all the things worth gaining, I know of nothing equal to the wealth of raising children who possess wisdom. There is no other blessing greater than this.