数学之美在于它能够如此精确地描述宇宙。
I have lived with the prospect of an early death for the last 49 years. I'm not afraid of death, but I'm in no hurry to die. I have so much I want to do first.
"The past is never dead. It's not even past."
We have to continually be jumping off cliffs and developing our wings on the way down.
Change is not made without inconvenience, even from worse to better.
To be a Jew is to be a witness.
对中国市场潜力的信心。
——1905年8月13日在东京中国留学生欢迎大会上的演说