TV Quote from The Simpsons 05x03: Homer Goes to College

Homer: Look, the important thing is that we all learned a lesson. These guys learned the richness and variety of the world outside college.
Nerd: No we didn't.
Homer: Oh. Then I learned the real value of college is to study, and work hard.
Lisa: No you didn't. You only passed your course by cheating, which you always taught us was wrong.
Homer: Hmm... true.