Chapter One - Mishna 13 (3)
He who makes improper use of the crown of Torah will perish.
Hillel ends by saying: "A person who uses the crown of Torah for his own benefit will die." Every one of us has the mitzvah of learning Torah. A person who uses the Torah he learns to get honor and to become rich, will die early. The man putting on the crown of Torah thinks that he is so great. A person who brags about the Torah that he learns, the crown will disappear from his head. From the mishnah we also learn that a person should not allow a Torah scholar to serve him.