It might be that Plato is worried that he hasn't really shown that the soul is immortal afterwards.

可能是柏拉图担心,他并没真正解释,灵魂在死后是不朽的。

耶鲁公开课 - 死亡课程节选

And so it might well be that Plato himself recognized that the initial arguments aren't as strong as they need to be.

所以说不定柏拉图认识到,最初的论点,并不是他所需要的那样强有力

耶鲁公开课 - 死亡课程节选

We don't know precisely what Plato thought, but we are helped, at least, by a kind of intellectual autobiography that he wrote and that we still have, in what is " conventionally referred to as The Seventh Letter.

我们无法确切明了柏拉图的想法，但至少我们能透过,某种理智的自传找到线索,我们仍握有他亲笔所写的书信,即一般所指的，“第七书信。

耶鲁公开课 - 政治哲学导论课程节选

One of the reasons why it's taken archaeologists so long to pinpoint its whereabouts may be the fact that it lies 60 miles inland, where you wouldn't really expect it to be susceptible to the effects of tidal waves (which is what Plato's account of the ancient city identified as its demise).

ENGADGET: Researchers claim discovery of lost city of Atlantis, conveniently located in southern Spain