“be careful of monsters with teeth”
“Be careful in the company of monsters that you don't become one.”
“Be careful, boy. In some tales, the hero gets eaten by the monster after all.”
“But witchy magic doesn’t listen to please and pretty please, and anyway, I didn’t really care. I only pretended to care because not caring makes me a monster.”
“He who fight monsters must take care that he doesn't become one himself.”
“Greed is a snarling monster with a set of razor-sharp teeth on both sides of its head. It devours not only those from whom it takes, but also those who eagerly receive its plunder.”