实现明天的唯一限制是我们今天的疑虑。
"The only limit to our realization of tomorrow is our doubts of today."
When we understand knowledge-based systems, it will be as before -- except our fingertips will have been singed.
我不是完美主义者，但我喜欢把事情做好。
我不担心别人怎么想，我只是出去尽我所能。
Writing is the only thing I've ever done with persistence, except for being married.
"The world is a book, and those who do not travel read only one page."
The past is a foreign country; they do things differently there.