指某些秘密或天意不能随意透露。

I know you've heard it a thousand times before. But it's true-hardwork pays off. If you want to be good, you have to practice, practice, practice.

共产主义理论可以用一句话来概括：废除一切私有财产。

The book, total expansion of the letter.

"The only limit to our realization of tomorrow is our doubts of today."