每座建筑至少有两种生命——设计者想象的生命和它后来实际经历的生命。
The best anti-poverty program is a growing economy with good jobs.
活着就是为了改变世界，难道还有其他原因吗？
I don't fear failure. I fear not trying.
The only way to deal with the past is to accept it.
现代物理学的挑战不仅在于找到答案，还在于提出正确的问题。