The essence of mathematics lies in its freedom.
数学的本质在于它的自由。
Life is about making an impact, not making an income.
Psychology should concern itself not with static elements, but with the dynamic interplay between organism and environment.
浅陋的人,不能和他谈论深奥的见解;愚蠢的人,不能和他谋划有智慧的事。井底之蛙,不能和它谈论东海的快乐。
生活就是被可能发生的事情的幽灵所困扰。