The only limits you have are the limits you believe.

There is no such thing as a quality problem. There are only problems, and the solutions to those problems may involve quality considerations.

我不追随潮流，我创造潮流。

后见之明对历史学家乃至回忆录作者非常有用，但遗憾的是，实践中的政治家却无法拥有。