Every failure in an experiment is a step closer to success.
The mind is everything. What you think you become.
Acknowledging what you don't know is the dawning of wisdom.
模形式的算术是理解数论更深层次结构的关键。
想想看,人类愚蠢到会去小心地避免那些可能使他们造成伤害的臭鼬或是狐狸,却不担心狮子对他们安全造成的威胁。