Thirukkural

ஆற்றின் அறவறிந்து ஈக அதுபொருள் போற்றி வழங்கு நெறி.

Aatrin Aravarindhu Eeka Adhuporul Potri Vazhangu Neri

Let a man know the measure of his ability (to give), and let him give accordingly; such giving is the way to preserve his property