抽象的目的不是含糊不清,而是创建一个新的语义层次,在这个层次上可以绝对精确。
The only thing that stands between a man and what he wants from life is often merely the will to try it and the faith to believe that it is possible.
要解决一个问题,首先必须理解它的本质,然后找到正确的工具来处理它。
预测未来的最好方法就是创造它。