The difference between an optimist and a pessimist? An optimist laughs to forget, but a pessimist forgets to laugh.
The difference between school and life? In school, you're taught a lesson and then given a test. In life, you're given a test that teaches you a lesson.
Change this and that and try again. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Cras mattis consectetur purus sit amet fermentum.