悲伤会改变形态但永远不会真正离开我们。
We are living in a universe that is constantly expanding and evolving.
数学中的合作可以带来任何单一思维都无法独自实现的发现。
"The most important thing is to stay passionate."
幸福通过美德获得;它是人通过自己的意志获得的美好。