Why were the highly accomplished so dogged in their pursuits? For most, there was no realistic expectation of ever catching up to their ambitions. In… - Angela Duckworth

During his twenty-year professional baseball career, Seaver aimed to pitch "the best I possibly can day after day, year after year." Here is how that intention gave meaning and structure to all his lower-order goals: Pitching . . . determines what I eat, when I go to bed, what I do when I'm awake. It determines how I spend my life when I'm not pitching. If it means I have to come to Florida and can't get tanned because I might get a burn that would keep me from throwing for a few days, then I never go shirtless in the sun. . . . If it means I have to remind myself to pet dogs with my left hand or throw logs on the fire with my left hand, then I do that, too. If it means in the winter I eat cottage cheese instead of chocolate chip cookies in order to keep my weight down, then I eat cottage cheese. The life Seaver described sounds grim. But that's not how Seaver saw things: "Pitching is what makes me happy. I've devoted my life to it. . . . I've made up my mind what I want to do. I'm happy when I pitch well so I only do things that help me be happy." What I mean by passion is not just that you have something you care about. What I mean is that you care about that same ultimate goal in an abiding, loyal, steady way. You are not capricious. Each day, you wake up thinking of the questions you fell asleep thinking about. You are, in a sense, pointing in the same direction, ever eager to take even the smallest step forward than to take a step to the side, toward some other destination. At the extreme, one might call your focus obsessive. Most of your actions derive their significance from their allegiance to your ultimate concern, your life philosophy. You have your priorities in order.

I'm not going to lie," he replied. "I never really enjoyed going to practice, and I certainly didn't enjoy it while I was there. In fact, there were brief moments, walking to the pool at four or four-thirty in the morning, or sometimes when I couldn't take the pain, when I'd think, 'God, is this worth it?' " "So why didn't you quit?" "It's very simple," Rowdy said. "It's because I loved swimming. . . . I had a passion for competing, for the result of training, for the feeling of being in shape, for winning, for traveling, for meeting friends. I hated practice, but I had an overall passion for swimming.

Indeed, the calculated costs and benefits of passion and perseverance don't always add up, at least in the short run. It's often more "sensible" to give up and move on. It can be years or more before grit's dividends pay off.