A man who lacks reliability is utterly useless.

Not to mend one's ways when one has erred is to err indeed.

Those whose courses are different cannot lay plans for one another.

At seventy, I could follow the dictates of my own heart; for what I desired no longer overstepped the boundaries of right.

When things are investigated, then true knowledge is achieved; when true knowledge is achieved, then the will becomes sincere; when the will is sincere, then the heart is set right ; when the heart is set right, then the personal life is cultivated; when the personal life is cultivated, then the family life is regulated; when the family life is regulated, then the national life is orderly; and when the national life is orderly, then there is peace in this world.

There are 1,000 lessons in defeat. But only one in victory.

A happy union with wife and child is like the music of lutes and harps.