The act of writing is an act of defiance.

A mathematician is a device for turning coffee into theorems.

I quite agree with them that it is not an ennobling experience. Poverty entails fear, and stress, and sometimes depression; it means a thousand petty humiliations and hardships. Climbing out of poverty by your own efforts, that is indeed something on which to pride yourself, but poverty itself is romanticised only by fools.

存在是一种风险，但不存在也是一种风险。

In my early professional years I was asking the question: How can I treat, or cure, or change this person? Now I would phrase the question in this way: How can I provide a relationship which this person may use for his own personal growth?

愉快是健康的最佳促进者。

自然系统的当前状态显然是前一时刻的结果，如果我们设想一个在给定瞬间理解这个宇宙所有实体关系的智慧，它就能陈述所有这些实体在过去或未来的任何时间的各自位置、运动和一般效应。