我被告知进步的道路既不是快速的,也不是容易的。
对物质拓扑相的研究证明了理论物理学在预测和解释新物质状态方面的力量。
The act of reading is an act of empathy, a way to step into someone else's shoes.
You can tell more about a person by what he says about others than you can by what others say about him.