Organic chemistry just now is enough to drive one mad. It gives me the impression of a primeval tropical forest, full of the most remarkable things, a dreadful endless jungle into which one does not dare enter for there seems to be no way out.
有机化学现在足以让人发疯。它给我一种原始热带森林的印象，充满了最非凡的事物，一个可怕的、无尽的丛林，人们不敢进入，因为似乎没有出路。
The essence of mathematics lies in its freedom.
All things are possible until they are proved impossible and even the impossible may only be so, as of now.
教育系统的墙必须倒塌。教育不应是特权，所以有钱人的孩子才能学习。