To know is to know that you know nothing. That is the meaning of true knowledge.
The superior man will watch over himself when he is alone. He examines his heart that there may be nothing wrong there, and that he may have no cause of dissatisfaction with himself.
A ruthless man extends his ruthlessness from those he does not love to those he loves.
The parents age must be remembered, both for joy and anxiety.
A workman who wants to do his work well must first prepare his tools.
If the search for riches were sure to be successful, though I should become a groom with a whip in my hand to get them, I will do so. As the search may not be successful, I will follow after that which I love.