You realize it's very subtle, because the very first thing in that equation, which is m, has not yet been defined.

你会觉得这很微妙,因为方程里最基本的量 也就是 m,还没有人给它下定义

耶鲁公开课 - 基础物理课程节选

What should we say about Phase A, when the body is turned on and functioning,developing, but the brain has not yet gotten to the stage at which it's turned on, or perhaps it hasn't yet become, well,it's not doing person functioning.

我们对A阶段又该做何解释呢，当身体开始运行发展，但大脑还未到达开发的阶段，或者说这阶段尚未到来时，并没有人格功能的产生。

耶鲁公开课 - 死亡课程节选