So even if we grant that what Socrates meant by invisible was can not be observed, we still have to say with Simmias , you know, fourth is just not true.

所以即使我们认同苏格拉底,指的无形是不能被感知，我们仍旧站在西米亚斯这边，第四点是不正确的。

耶鲁公开课 - 死亡课程节选