Calvin and Hobbes by Bill Watterson for April 30, 2015
Calvin: "I need to get a heart rate monitor" Hobbes: "What for?" Calvin: "To make sure I'm chewing at my aerobic threshold! Every day I want to see that I'm chewing more gum faster, harder, and longer!" Hobbes: "What's the point of attaching a number to everything you do?" Calvin: "If your numbers go up, it means you're having more fun" Hobbes: "Science to the spirit's rescue once again"