The habit of reading is the only enjoyment in which there is no alloy; it lasts when all other pleasures fade.
文学的衰落表明一个民族的衰落。这两者走下坡路的时候是齐头并进的。
预测化学未来的最好方法就是去创造它。
The world is full of obvious things which nobody by any chance ever observes.