解释:不可以不知道活着的乐趣,也不可以不知道虚度光阴的担忧。
数学中最美丽的东西是复杂背后的简单思想。
The role of the infinitely small in nature is infinitely large.
Technology without ethics is just faster digging.
I've always been a private person.
The only limit to our understanding of the universe is our imagination.