我们对宇宙了解得越多，就越意识到我们不知道的还有很多。
The more we learn about the universe, the more we realize how much we don't know.
The more you know about yourself, the more patience you have for what you see in others.
每个人都幻想将来会更好，而不是更糟。
The method of introspection must be rigorously controlled.
The truth is a fragile thing, easily broken.
事情过后议论别人，身在局外议论局内人，是做学问的人最容易犯的毛病。在事后议论别人，往往将聪明人说得极其愚笨；身在局外议论局内的人，往往将困难的事情说得极其容易，这两种毛病都是由待人不忠诚、不宽容而引起的。