The one exclusive sign of thorough knowledge is the power of teaching.

Wonder rather than doubt is the root of all knowledge.

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

Knowledge cultivates your seeds and does not sow in your seeds.

If the Great Way perishes there will morality and duty. When cleverness and knowledge arise great lies will flourish. When relatives fall out with one another there will be filial duty and love. When states are in confusion there will be faithful servants.