Editor's note: When asked how many sit-ups he did per day, the great Muhammad Ali replied, “I don't count my sit-ups; I only start counting when it starts hurting because they’re the only ones that count.” This statement from the articulate, incomparable Ali may have been the original "No pain, no gain." Think of him next time you're at the gym. And next time you're slouched in front of your computer, we hope you'll look at your sparkling new Gym Motivation wallpaper, sit up a little straighter and start to get psyched up for your next gym session! Get one today, like now!