Everything -- gold, silver, diamonds, particles -- everything accelerates the same way in a gravitational field, due to this remarkable fact.

所有东西,金,银,钻石,粒子,所有东西,在引力场作用下都以相同的方式加速,原因就是这个显著的事实

耶鲁公开课 - 基础物理课程节选

But the mere fact that they would change your behavior doesn't yet tell you whether they're reason-generating facts.

但仅仅是它们会改变你的行为这个事实,并没有告诉你它们是否是产生原因的事实。

耶鲁公开课 - 死亡课程节选