It says: "I am Dipper Pines! I am a sweaty awkward teenager who has a crush on Pacifica! I cannot comprehend the infinite knowledge the universe has to offer, nor can I even light a candle to Bill's knowledge. It was wrong of me to defeat Bill Cipher, and he is NOT a dorito.
BILL CIPHER'S, REJOICE! (I felt like Shooting Star when I said that.)