There are those men who say to repay evil with kindness. But I say, how then are we to repay kindness? Repay kindness with kindness, but repay evil with justice.

The Master said, “The gentleman understands what is right, whereas the petty man understands profit.” (Analects 4.16)

Instead of being concerned that you have no office, be concerned to think how you may fit yourself for office. Instead of being concerned that you are not known, seek to be worthy of being known.

Don’t complain about the snow on your neighbor’s roof when your own doorstep is unclean.

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

The wise man delights in water, the Good man delights in mountains. For the wise move; but the Good stay still. The wise are happy; but the good secure.

The failure to cultivate virtue, the failure to examine and analyze what I have learned, the inability to move toward righteousness after being shown the way, the inability to correct my faults-these are the causes of my grief.