The kind of body we have from the start is not something we get to choose. But there are things we do choose, aren't there? Our hegemonicon, our rational faculty allows us to make choices. We spend so much time whining about our lot in life and especially aspects of it which, if we thought about them, we know we cannot directly control. You're grumpy, but why? Do you think you have no choice but to be grumpy? Is that part of your body?