过去是跟随我们进入未来的影子。
The idea is to make something that looks like something else.
The study of economics is ultimately the study of human behavior and its consequences.
The fight against viruses is a continuous battle, and science must always stay ahead.
艺术家必须是大地的孩子。
成功不是要成为最好的，而是要变得比昨天更好。