Think about what it's like to see red, the sensation of seeing red.

想一想,看见红色有什么感觉,对红色的知觉是什么样的

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It's the sensation of what it's feeling like-- that's why we call them feelings after all-- what it's feeling like on the inside,as it were, while all this behavioral stuff's going on.

感觉的知觉,这就是为什么我们最终还是称之为感受,即,内心的感觉,与所有这些行为层面的东西同时发生

耶鲁公开课 - 死亡课程节选