The pursuit of knowledge is a journey without end, but each step brings its own rewards.

The interest of the behaviorist in man's doings is more than the interest of the spectator—he wants to control man's reactions as physical scientists want to control and manipulate other natural phenomena.

爱是最终让生命变得可以忍受的唯一东西。

没有思想的自由，就没有真正的自由。

教育是我们减少不平等和促进社会流动的最有力工具之一。

我们之所以能够区分远处看到的模糊形状和颜色，是因为我们的眼睛的能力。

我不会继续敲那扇不为我打开的老门。我要创造自己的门，然后走进去。