现代时代最重要的政治发展是现代国家的崛起。

I'm so high, I can hear heaven.

你必须愿意失败，愿意犯错，并不断尝试。

Success is a state of mind. If you want success, start thinking of yourself as a success.

The most important thing in science is not to be afraid to ask questions.

Every tree planted today is an investment in a greener tomorrow.

路上挤满了去某个地方的人群，但没有人知道他们要去哪里。