行为的科学研究必须基于客观、可测量的数据。
The invention of the cotton gin was the result of necessity and observation.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
Every murder has a story. Every killer has a reason.
我不需要成为球队的明星。我只想成为团队的一员,尽我所能提供帮助。
The glow of one warm thought is to me worth more than money.