化学的乐趣在于看到不可见的东西变得可见。
The most dangerous thing is not failure, but complacency.
在一个充满仇恨的世界,我们仍须勇于希望。在一个充满愤怒的世界,我们仍须勇于安慰。在一个充满绝望的世界,我们仍须勇于梦想。在一个充满猜忌的世界,我们仍须勇于相信。
The only certainty is uncertainty.
We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.