心理学是精神生活的科学。
Psychology is the science of mental life.
释义：所有圣贤都因领悟“无为的境界深浅不同而显现差异。
每一种语言都是思想的古老森林。
经济学中最重要的是理解个人和企业的行为。
Sustainability isn't a choice anymore—it's a necessity for any business that wants to thrive in the future.
The arithmetic of modular forms is a reflection of the deeper symmetries of number theory.