过去是你记得的、你想象你记得的、你说服自己记得的，或者假装记得的。
The past is what you remember, imagine you remember, convince yourself you remember, or pretend you remember.
数学家研究纯数学不是因为它有用；他研究它是因为他喜欢它，他喜欢它是因为它美丽。
心灵不是一个结构而是一个过程。
Optimism is a learned skill.
The capacity for loneliness is like a muscle that must be exercised.
A good director is like a good conductor; he doesn't make a sound, but he makes the orchestra sound great.
The greatest happiness is to despise what deserves to be despised.
可持续性不是成本——而是对韧性和长期增长的投资。
最先进的系统是与自然和谐共存的系统。