The historian must be impartial, but not indifferent.
权力精英由那些其职位使他们能够超越普通男女的普通环境的人组成；他们处于能够做出具有重大后果的决策的位置。
Science is not about control. It is about cultivating a perpetual condition of wonder in the face of something that forever grows one step richer and deeper than our latest theory about it.
不要害怕失败，要害怕不去尝试。
Optimism is a learned skill. Once you learn it, you can improve your life in every way.
最令人兴奋的突破往往来自意想不到的地方。
不要让恐惧阻止你追逐梦想。