我们可以轻易原谅害怕黑暗的孩子;人生真正的悲剧是成年人害怕光明。
听我说,朋友,希望是件危险的事。希望能叫人发疯。
世界不是游乐场,而是思想和利益的战场。
The only way to make sense out of change is to plunge into it, move with it, and join the dance.
The essence of mathematics lies in its freedom.