Persistence in research is key; nature reveals its secrets only to those who are patient.

出自先秦《荀子·劝学》。定居一定要选择适当的邻里，交游一定要接近贤士。说明要加强道德修养，就应该注意周围环境。

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

解释：受宠而不骄横，骄横而能安于下位，地位在下而不怨恨，怨恨而能克制的人，是非常少见。

希望不是一种感觉；它是一种可行的事情。

"In literature, we find the truth of our own existence."

Art is God's gift to mankind.

科学不仅仅在于积累事实，而在于对其精神的深入理解。

只要心中有远大的志向，没有不能达到的地方；而心中所追求的，则没有任何困难可以阻拦。