剧院是一面反映人类状况的镜子。
当生存成为日常课题，长期计划便成了奢侈品。
I never buy a stock unless I can see a clear path to a 50% return.
The truth is rarely pure and never simple.
函数的概念在数学中是基础的，而λ演算试图使这一概念精确化。