The thing about happiness is that you only know you had it when it's gone.
关于幸福，你只有在失去它的时候才知道你曾经拥有过。
广义相对论在某种意义上就是引力场的理论。
I like crossing the imaginary boundaries people like to draw between scientific fields.
沙漠之所以美丽，是因为在它的某个角落隐藏着一口井水……
The true artist is always searching for the meaning of life.
The time at our disposal each day is elastic; the passions we feel dilate it, those we inspire contract it; and habit fills up what remains.
女权运动让女性相信她们可以拥有一切——事业、家庭和个人满足。但现实是，有些事情必须放弃。