Hope is a good thing, maybe the best of things, and no good thing ever dies.
要么忙着活,要么忙着死。
It is vain to expect virtue from women till they are, in some degree, independent of men.
每一个失败的实验都会教会你一些宝贵的东西——不要害怕犯错。
化学的未来在于开发与自然合作而非对抗的可持续方法。