If a man keeps cherishing his old knowledge so as continually to be acquiring new, he may be a teacher of others.
If either wealth or poverty are come by honesty, there is no shame.
Not too isolated, not too many relationships, the middle, that's wisdom.
If a man takes no thought about what is distant, he will find sorrow near at hand.
Return good for good; return evil with justice.
Study the past, if you would divine the future.