You are never too old to set another goal or to dream a new dream.
I'm not a soldier, I'm not a warrior, I'm just a storyteller.
Mathematics is the language in which God has written the universe.
I don't want to be a teacher. I want to be a friend.
最有力的艺术往往源于最简单的想法。
所有人都存在危险。自由政府的唯一准则应该是不要信任任何拥有权力的人，以免危及公共自由。
The past is always there, but it's not the only thing that's there.
采矿创新不是可选的——它对生存和发展至关重要。
The best way to predict the future is to create it.