Thirukural

Quote:

In sandy soil, when deep you delve, you reach the springs below;
The more you learn, the freer streams of wisdom flow.

Explanation:

Water will flow from a well in the sand in proportion to the depth to which it is dug, and knowledge will flow from a man in proportion to his learning.

 Quote:

So learn that you may full and faultless learning gain,
Then in obedience meet to lessons learnt remain.

Explanation:

Let a man learn thoroughly whatever he may learn, and let his conduct be worthy of his learning.