I'm trying to find a quote...

"What you seek to destroy, you will become"

But everytime I type it in, it just shows me the exact same thing I typed.... Help Please.

Maybe the original quote is phrased differently? The following by Fredrich Wilhelm Nietzsche might be similar to what you're looking for, though:

"Battle not with monsters, lest ye become a monster, and if you gaze into the Abyss, the Abyss gazes also into you."

..........

In the original German wording:

"Wer mit Ungeheuern kämpft, mag zusehn, dass er nicht dabei zum Ungeheuer wird. Und wenn du lange in einen Abgrund blickst, blickt der Abgrund auch in dich hinein."

Uhh not exactly what I was looking for.. Can you reccomend any other sites?? I made a bet with my brother.. He thinks that he made up that quote. I think he's wrong..... Thanks for trying though!