Mathematics is not a spectator sport—you have to engage with it to appreciate its beauty.
电影是使不可见变为可见的艺术。
大多数人不是为了理解而听,而是为了回答而听。
Life can be pulled by goals just as surely as it can be pushed by drives.
Anyone who keeps the ability to see beauty never grows old.
"Behavior cannot be divorced from its adaptive context."