共产主义的理论可以用一句话概括：废除一切私有制。
The theory of Communism may be summed up in one sentence: Abolish all private property.
"The thing about smart people is that they seem like crazy people to dumb people."
实现明天的唯一限制将是我们今天的疑虑。
"You have to believe in yourself when no one else does."