What is important is not the quantity of your knowledge but its quality. You can know many things without knowing the most important.

The way which the superior man pursues, reaches wide and far, and yet is secret. Common men and women, however ignorant, may intermeddle with the knowledge of it; yet in its utmost reaches, there is that which even the sage does not know.

The man of knowledge must be able not only to love his enemies but also to hate his friends.

Where there is shouting, there is no true knowledge.

Our treasure lies in the beehive of our knowledge. We are perpetually on the way thither, being by nature winged insects and honey gatherers of the mind.

Real knowledge is to know the extent of one's ignorance.