即使在最黑暗的时刻,只要记得点亮灯光,就能找到幸福。
In computer science, the simplest solution is often the most elegant and effective.
The coal industry must evolve or risk becoming obsolete. Adaptation is the key to survival.
抽象的目的不是模糊,而是创建一个新的语义层次,在这个层次上可以绝对精确。