Learning without thought is labor lost.

There are three methods to gaining wisdom. The first is reflection, which is the highest. The second is limitation, which is the easiest. The third is experience, which is the bitterest.

It's remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent.

In life, all good things come hard, but wisdom is the hardest to come by.

If you think you're a really good programmer... read Knuth's Art of Computer Programming... You should definitely send me a resume if you can read the whole thing.

Silver and gold are not the only coin; virtue too passes current all over the world.

I add this, that rational ability without education has oftener raised man to glory and virtue, than education without natural ability.

In life, all good things come hard, but wisdom is the hardest to come by.

Live to learn and you will really learn to live.

When I teach and mentor leaders, I remind them that if they stop learning, they stop leading

Rule #4: If you don't learn the easy lessons, they get harder. (Pain is one way the universe gets your attention.) Rule #5: You'll know you've learned a lesson when your actions change.

Value self-improvement above self-promotion. King Solomon of ancient Israel said, "Let instruction and knowledge mean more to you than silver or the finest gold. Wisdom is worth much more than precious jewels or anything else you desire." Make your next career move based on how it will improve you personally rather than how it will enhance you financially.