实现明天的唯一限制将是我们今天的疑虑。
The only limit to our realization of tomorrow will be our doubts of today.
不要让你的火焰熄灭,一点一点地,不可替代的火花。
I don't like to lose money, so I try to buy stocks that are cheap.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.