Who said "This is bigger than both of us."?

This quote is attributed to Morty Smith.

This is bigger than both of us. - Morty Smith

"This is bigger than both of us."

Morty Smith

"Oh geez, oh man, I don't know if I can do this!"

"Why would you do that? That's like, the worst possible thing you could have done."

"I'm just a kid, Rick. I don't understand half of what you say."

"You know what, screw you, Rick! I'm going home!"