Mental life is a continuous adjustment to internal and external demands.

The danger of the past was that men became slaves. The danger of the future is that men may become robots.

最大的风险是不承担任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。

理解变化的唯一方法是投入其中，随之而动，并加入舞蹈。

体操是我做的事，而不是我是谁。

I do not like proper novels. In proper novels people say things like, ‘I am veined with iron, with silver and with streaks of common mud. I cannot contract into the firm fist which those clench who do not depend on stimulus.’ What does this mean? I do not know. Nor does Father. Nor do the people who write these books.