All wealth is the product of labor.
Loneliness is the curse of nature to those who live in groups, and solitude is the only way out of loneliness.
I never give up. I keep fighting until the end.
数学不知道种族或地理界限;对于数学来说,文化世界是一个国家。
可持续性不再是一种选择,而是水产养殖业生存的必要条件。
The best art is the art that changes you.