Learning is a livelihood.

Youth, abundant wealth, high birth, and inexperience, are, each of them a source of ruin. What then must be the fate of those in whom all four are combined.

What ever is the natural propensity of a person is hard to overcome. If a dog were made a king, he would still gnaw at his shoes laces.

That one is learned who has reduced his learning to practice.

Idleness, women, disorder, a foolish partiality for one's own native place, discontent and timidity are six obstructions to greatness.

Amongst all things, knowledge is truly the best thing: from its not being liable ever to be stolen, from it not being purchasable, and from its being imperishable.