Only by perfect virtue can the perfect path, in all its courses, be made a fact.
Listen widely to remove your doubts and be careful when speaking about the rest and your mistakes will be few.
The Master was entirely free from four things: prejudice, foregone conclusions, obstinacy, and egoism.
Big head, target for enemy; big heart, target for friend.
Learning without thought is labour lost.
Knowing what's correct and not doing it, it's the worst cowardice.