The general of a large army may be defeated, but you cannot defeat the determined mind of a peasant.
Knowledge is recognizing what you know and what you don't.
When you serve your mother and father it is okay to try to correct them once in a while. But if you see that they are not going to listen to you, keep your respect for them and don't distance yourself from them. Work without complaining.
Justice for All in the World
The gentleman desires to be halting in speech but quick in action.
The Master was entirely free from four things: prejudice, foregone conclusions, obstinacy, and egoism.