The political liberty of the subject is a tranquility of mind arising from the opinion each person has of his safety.

科学问题有意识的解决给我们提出的最直接且在某种意义上最重要的问题，是对结果的准确阐述。

劳动是一切财富和一切文化的源泉。

A man who dares to waste one hour of time has not discovered the value of life.

充塞天地的气是我的身体，统帅天地的理是我的本性。

You control your future, your destiny. What you think about comes about. By recording your dreams and goals on paper, you set in motion the process of becoming the person you most want to be. Put your future in good hands — your own.

我们不需要魔法来改变世界，我们内心已经拥有所需的力量。