It is the tears of the earth that keep her smiles in bloom。
"The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter."
我们进步的考验不在于我们为那些拥有很多的人增添更多,而在于我们是否为那些拥有太少的人提供足够。
色散理论是连接量子力学的抽象形式与我们观察到的具体现象之间的桥梁。