有时你建起心墙并非为了远离人群，而是为了看清谁在乎去推倒它。
Sometimes you put walls up not to keep people out，but to see who cares enough to break them down.
Mental processes exist because they have served life's continuance.
You have to see failure as the beginning and the middle, but never entertain it as the end.
解释：国家垂危败亡，一定是因为任用了奸邪小人。