尽可能广泛地涉猎各门学问，并且尽可能深入地择一钻研。
You can turn over a new leaf every hour if you choose.
勇气不是没有恐惧，而是判断有比恐惧更重要的东西。
"To live is the rarest thing in the world. Most people exist, that is all."
The actions of men are the best interpreters of their thoughts.
The only thing I can do is to be honest about my uncertainty.