If a man keeps cherishing his old knowledge so as continually to be acquiring new, he may be a teacher of others.
A scholar who loves comfort is not fit to be called a scholar.
Isn't it a pleasure to study and practice what you have learned?
Only after Winter comes do we know that the pine and the cypress are the last to fade.
Eat at your own as you would the table of a king.
Return good for good; return evil with justice.