生命太短暂，不要把时间浪费在不能让你灵魂快乐的事情上。

反应的概率由其强化历史决定。

你唯一能做的就是在特定的那一天全力以赴。

"The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion."

我做事情不是为了得到反应或批评，我是为了长远的坚持。

美德比恶德更值得担忧，因为它的过度不受良心的调控。