Philosophy must be unintelligible

In the course of some research I stumbled upon this quote by Heidegger, which somehow explains why that one text of his I’m currently reading doesn’t make that much sense:

Making itself intelligible is suicide for philosophy.

Isn’t this just wonderful? Sentences like this one:

Everyone is the other, and no one is himself. The they, which supplies the answer to the who of everyday Da-sein, is the nobody to whom every Da-sein has always already surrendered itself, in its being-among-one-another.

suddenly make sense, because I now know that their sense is to not really make sense.

Which reminds me of that sentence:

In order to remain silent Da-sein must have something to say.

Which, if I’ve understood that correctly, is my cue to shut up.