The beauty of mathematics is not in its complexity, but in its simplicity and the profound truths it reveals about the universe.
你必须强迫自己考虑反对的论点。尤其是当他们挑战你最喜爱的观点时。
Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.
时间是个滑溜溜的东西:一旦失去控制,它的线索可能会永远从你手中溜走。