实现明天理想的唯一障碍是今天的疑虑。
我大概永远也遇不到任何合理的问题。
The most valuable asset any company has is its workforce.
I'm the reason your gravity won't pull.
The most important part of teaching is to teach what it is to know.
化学的进步以新元素的发现及其性质的测定为标志。