心理学的研究必须包括对心灵运作环境的研究。
The study of psychology must include the study of the environment in which the mind operates.
皮革行业必须进化，否则就有被淘汰的风险。
它们不是纪念碑，而是脚印。纪念碑只会说'至少我到了这里'，而脚印会说'这是我再次移动时所在的地方'。
An act of goodness is of itself an act of happiness.
If you're horrible to me, I'm going to write a song about it, and it won't be a good one for you.