Return good for good; return evil with justice.

Listen to all that you can – then, if you forget the deficiencies and speak about the rest cautiously, you avoid trouble. See all that you can – then, if you forget the perilous and act upon the rest cautiously, you'll avoid regret. In speech avoid trouble, in action avoid regret – then rewards will come of themselves.

He who wishes to secure the good of others, has already secured his own.

The people may be made to follow a path of action but they may not be made to understand it.

If things far away don't concern you, you'll soon mourn things close at hand.

Worthy admonitions cannot fail to inspire us, but what matters is changing ourselves. Reverent advice cannot fail to encourage us, but what matters is acting on it. Encouraged without acting, inspired without changing – there's nothing to be done for such people.