无论多么复杂或精细，所有行为都可以用刺激和反应来解释。
No matter how complex or refined, all behavior is to be explained in terms of stimulus and response.
我是你活着的原因，我是你生存的原因。
A writer must be willing to be challenged.
I don’t think of myself as a classical artist or a pop artist. I just think of myself as an artist who sings.
释义：勇敢的人敢闯天下，什么事情都能做成；过于谨慎的人却处处束手束脚，一步也难以前行。
波浪是海洋与陆地斗争的产物，生于海与岩石之间。
To talk about painting is not only difficult but perhaps pointless too.
解释：脚力不强劲，行程就不会远；刀刃不锋利，割东西就不会深。