When you know a thing, to hold that you know it, and when you do not know a thing, to allow that you do not know it - this is knowledge.

In dealing with the dead, if we treat them as if they were entirely dead, that would show a want of affection and should not be done; or, if we treat them as if they were entirely alive, that would show a want of wisdom and should not be done.

Old age, believe me, is a good and pleasant thing. It is true you are gently shouldered off the stage, but then you are given such a comfortable front stall as spectator.

When three persons work together, each can be the teacher in some aspects

Clever talk can confound the workings of virtue, just as small impatiences can confound great projects.

It is when those who are not strong enough have made some moderate amount of progress that they fail and give up.

When superiors are fond of showing their humanity, inferiors try to outstrip one another in their practice of it.