Learning consists in the modification of certain mediating processes which operate between the stimulus and the response.

有时我认为，唯一将我们与过去联系在一起的，就是现在。没有现在，过去将永远消失。

Diversity in thought leads to innovation; diversity in people leads to strength.

The past is never truly gone; it lives on in the stories we tell.

点燃蜡烛的同时也投下了阴影。