The most real thing that human beings can touch is the silence in loneliness.
只有那些冒险走得太远的人才能发现一个人能走多远。
The greatest wisdom is to recognize one's own ignorance.
成功的关键是不断尝试,即使第一次没有成功。
A good mathematician is not one who knows all the answers, but one who asks the right questions.