事实是，我们都能够做出可怕的事情。但我们也能表现出极大的善意。

Fear can be a useful signal, but it shouldn't be the only voice we listen to.

Topology is the study of the properties of a figure that are unchanged by any deformation.

我再也不想喝到需要去戒酒的地步了。

译文：天地永恒无穷尽，生命短暂很有限，过一天就少一天。荣华富贵自古以来就有定数，但学问则无定数，只要花费一份力，就会收获一分知识。赏析：这句话告诉我们，生命和青春有限，要懂得珍惜生命和时间，不要挥霍无度。我们要在有限的生命里，多读书学习，那么就会有收获。

每一个结束都是一个新的开始。

Positive emotions broaden our awareness and encourage novel, varied, and exploratory thoughts and actions. Over time, this broadened behavioral repertoire builds skills and resources.

The historical sense involves a perception, not only of the pastness of the past, but of its presence.

"The most important thing in science is not to be right, but to be curious."

在我的一生中，大自然的新景象让我像孩子一样欢喜。