元素是自然的字母表，而我们正在学习阅读。
The elements are the alphabet of nature, and we are learning to read.
智慧之鸟的猫头鹰，在文明的暮色中才开始起飞。
Don't let the noise of others' opinions drown out your own inner voice.
We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.
我不害怕变老。我更有经验，更聪明，更有耐心。