如果你愿意，每小时都可以翻开新的一页。

The difference between theory and practice is that in theory, there is no difference between theory and practice, but in practice, there is.

SILENCE. Speak not but what may benefit others or yourself; avoid trifling conversation.

创新是可持续发展的关键。

互联网是教育、沟通和协作的强大工具。