True progress happens when we balance economic growth with environmental stewardship.
The beauty of mathematics lies in its ability to reveal hidden symmetries and truths.
Stray birds of summer come to my window to sing and fly away。 And yellow leaves of autumn, which have no songs, flutter and fall there with a sigh。
The world is a book, and those who do not travel read only one page.
The world is full of broken stories, waiting to be mended.
An invention can be so valuable as to be worthless to the inventor.
In the end, we are all just trying to survive.