Willpower is not something you either have or you don't.
Sure, some people may be more self-disciplined than you. Some people may be better at resisting temptation than you. But that's probably not because they were born with some certain special something inside them--instead, they've found ways to store up their willpower and use it when it really matters.
They have remarkable willpower not because they have more of it, but because they've learned how to best use what they have.
Here's how you can, too.
Via Vicki Kossoff @ The Learning Factor, David Hain