人类能够达到的最高活动是为了理解而学习，因为理解就是自由。

I'm against repetition; every project is a new adventure.

The boundary between physics and mathematics is not as clear-cut as one might think.

艺术不应是一种奢侈品，而应是每个人的日常必需品。

选择最好的生活，因为习惯会使它愉快。