I'm fllummoxed. The only thing I can come up with is "Und hast mit Recht," but that is not a grammatical phrase. Do we get a clue?
It was the continuation of your quotation. Y'see, even my oblique answers succeed in confusing people.
"Ich bin der Geist, der stets verneint - und das mit Recht, denn alles, was entsteht, ist wert, daß es zugrunde geht."