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.

The method of psychology must be as exact as the methods of the natural sciences.

在数学中，真理总是相对于你所在的系统而言的。

Great leaders don't create followers; they create more leaders.

每一帧在讲述故事时都很重要。