The essence of mathematics lies in its freedom.
分析的整个发展和运算过程现在都可以通过机械来执行。
If history were taught in the form of stories, it would never be forgotten.
The truth is rarely pure and never simple.
做好研究的秘诀是始终保持轻微的工作不足状态。因为无法浪费几个小时,你可能会浪费数年时间。
If you're not making mistakes, you're not trying hard enough.
The greatest disability is a bad attitude.