Organic chemistry just now appears to me like 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.
有机化学现在在我看来就像一片原始热带森林,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 quantum world is not deterministic in the classical sense, nor is it purely random - it's something in between.
The PAC learning framework provides a formal way to quantify the learnability of a concept class.
多样性不仅仅是代表性问题,而是创造一个不同观点可以蓬勃发展的环境。