哲学不是一种学说，而是一种活动。
Philosophy is not a doctrine but an activity.
历史是一场我试图从中醒来的噩梦。
人生是一次性的旅行，让我们勇敢地生活，不留遗憾。
It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.
The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.
写作是一种自由的形式。
The only limit to our realization of tomorrow is our doubts of today.