You will never know how sharp a sword is unless it's drawn from its sheath

We can know a person by observing his behaviour, understanding the reasons for his actions and ascertaining his intentions. If we do this, how can we not know him?

Let our reason, and not our senses, be the rule of our conduct; for reason will teach us to think wisely, to speak prudently, and to behave worthily.

There are three sorts of pleasures which are advantageous, and three which are injurious. Finding pleasure in the discriminating study of ceremonies and music, finding pleasure in discussing the good points in the conduct of others, and finding pleasure in having many wise friends, these are advantageous. But finding pleasure in profligate enjoyments, finding pleasure in idle gadding about, and finding pleasure in feasting, these are injurious.

Never overlook wallflower at dance; may be dandelion in grass.

Therefore only through education does one come to be dissatisfied with his own knowledge, and only through teaching others does one come to realize the uncomfortable inadequacy of his knowledge. Being dissatisfied with his own knowledge, one then realizes that the trouble lies with himself, and realizing the uncomfortable inadequacy of his knowledger.

It is goodness that gives to a neighborhood its beauty. One who is free to choose, yet does not prefer to dwell among the good - how can he be accorded the name of wise?