做数学就是探索一个思想的宇宙,唯一的限制是你的想象力。
To do mathematics is to explore a universe of ideas, where the only limit is your imagination.
任何地方的任何人,只要有机会,就会绽放出百种意想不到的才能和能力。
"Grief does not change you, Hazel. It reveals you."
The method of psychology must be as exact as that of the physical sciences.