Character is not something you were born with and can't change. In fact, because you weren't born with it, it is something that you must take responsibility for creating. I don't believe that adversity by itself builds character, and I certainly don't think that success erodes it. Character is built by how you respond to what happens in your life—whether it's winning every game, losing every game, getting rich or dealing with hard times. You build character out of certain qualities that you must create and diligently nurture within yourself—just like you would plant and water a seed, or gather wood and build a campfire. You've got to look for those things in your heart and in your gut. You've got to chisel away in order to find them, just like chiseling away the rock to create the sculpture that previously only existed in your imagination.
But do you want to know the really amazing thing about character? If you are sincerely committed to making yourself into the person you want to be, you'll not only create those qualities, but you'll continually strengthen them. And you will recreate them in abundance even as you are drawing on them every day of your life. Character sustains itself and nurtures itself as it is being put to work, tested and challenged. Once it is formed, character will serve as a solid, lasting foundation upon which to build the life you desire.