Sooner or later, we all reach a certain point where we feel the need to tell the world we're all grown up now. Maddies suddenly become Madelines, Billys are now Williams and on and on. Former MTV reality star Lauren Conrad is no exception.

When we first met her on "Laguna Beach" as a high school senior, she was LC. Then, when she moved up and out to "The Hills," suddenly, she was Lauren.

No matter what she was calling herself, however, she was always very wise. Can you differentiate between quotes from Lauren and quotes from LC?

Take our quiz and put yourself to the test.