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.

数学的力量在于它的普遍性和抽象性。

实现明天理想的唯一限制是我们今天的疑虑。

The architect must be a poet, a builder, and a revolutionary.

进步的最大障碍不是无知，而是知识的幻觉。