并不存在一个自由美国和一个保守美国的区别 - 只有团结的美利坚合众国。
人们往往认为,现在的政客比过去的政客要糟糕得多。但我们往往忘记了过去的政客有多糟糕。
The power of a computational model is not just in its ability to compute, but in its ability to generalize from specific instances.