(And he's quoting the French poet Relke)
Rainer Maria Rilke was born in Prague and wrote in German. It is indeed a quote from Rilke, you got that part right. One of my favorite writers - his letters are quite beautiful.
I had one that was brought to mind just the other day; a line from an XTC song:
I ask myself should I put my finger to the left, no
I ask myself should I put my finger to the right, no
I say it really doesn't matter where I put my finger
Someone else will come along and move it
And it's always been the same
It's just a complicated game
Marco