知道什么都不是；想象才是一切。
To know is nothing at all; to imagine is everything.
Never stop learning—the moment you think you know everything is the moment you start falling behind.
永远不要停止学习——当你认为自己什么都懂的那一刻，就是你开始落后的时刻。
The dialectical unity of Love and Strife is the eternal driving force in the cosmos.
繁荣建立在五个支柱上：积极情绪、投入、人际关系、意义和成就。
生命短暂，你必须不断前进。