Real knowledge is to know the extent of one's ignorance.
It does not matter how slowly you go as long as you do not stop.
When you are laboring for others let it be with the same zeal as if it were for yourself.
To see what is right and not to do it is want of courage, or of principle.
The object of the superior man is truth.
Virtue is not left to stand alone. He who practices it will have neighbors.