没有目标的利润最终是不可持续的。
You have to fight to reach your dream. You have to sacrifice and work hard for it.
写作是回忆,但也是遗忘。
代数是人类创造的一种智力工具,用于清晰地表达世界的数量关系。
There is no such thing as failure. Failure is just life trying to move us in another direction.