要解决复杂的问题,我们必须首先理解产生这些问题的系统。
Representation theory provides the language in which many number-theoretic phenomena can be expressed.
所以,在收成好的年头,百姓就仁义善良;遇到荒年,那么百姓也会吝啬而凶恶。 
Pain research is not just about alleviating suffering; it's about understanding a fundamental aspect of human biology.