Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.

The motor of our ingenuity is the question ‘Does it have to be like this?’, from which arise political reforms, scientific developments, improved relationships, better books.

时间是人类为了理解宇宙而创造的概念，但宇宙本身是永恒的。

礼义法度，是随着时势而变化的。