The young do not know enough to be prudent, and therefore they attempt the impossible, and achieve it, generation after generation.
The next green revolution won't come from a lab alone—it will come from farmers' fields around the world.
成功的代价是努力工作、专注于手头的任务,以及无论输赢都全力以赴的决心。
程序是一首诗。
动力学的方程在用变分法的语言表达时是完全的。