心灵不是一台需要被理解的机器，而是一个需要被体验的生命过程。
主要的义务规则是那些要求或禁止某些行为的规则。
The mathematician's patterns, like the painter's or the poet's, must be beautiful; the ideas, like the colors or the words, must fit together in a harmonious way.
"We are most alive when we're in love."