最有趣的艺术是提出问题的艺术。
"I am free, no matter what rules surround me. If I find them tolerable, I tolerate them; if I find them too obnoxious, I break them. I am free because I know that I alone am morally responsible for everything I do."
"Every story is a seed. Plant it, and watch it grow."
纯数学和应用数学之间的相互作用是真正创新发生的地方。