True courage is not the absence of fear, but moving forward in the face of fear.
The stories we tell ourselves about ourselves are the most powerful stories of all.
Mental activity is always directed toward some end.
The most important part of teaching is to teach what it is to know.
【译文】如果不明事理,那么动就不知道往哪里去;如果不动,那么即使明白事理也没有用处。