你必须对自己的能力有信心，然后足够坚强地坚持下去。
You have to have confidence in your ability, and then be tough enough to follow through.
"Biography is the most intimate form of history."
We don't even know how strong we are until we are forced to bring that hidden strength forward. In times of tragedy, of war, of necessity, people do amazing things. The human capacity for survival and renewal is awesome.
不用圆规和曲尺，就不能画出方形和圆形。比喻做事要遵循一定的法则。