The problem with time travel is that you can't travel to a place where you don't exist.
时间旅行的难题在于，你无法前往自己不存在的地方。
诗人是人类情感的守护者。
The concept of computational efficiency is central to the design of learning algorithms.
传记的挑战不仅在于记录，更在于照亮。
You have to think for yourself. It always amazes me how high-IQ people mindlessly imitate. I never get good ideas talking to other people.