“You’re only human.” That’s what someone says when they want you to set your sights a little lower, to make your goals a little less lofty. “Only human”. It’s supposed to be a reminder that, when you get down to it, we are basically chimps who traded a little less hair for a little more brain. “Only human” means: you’re limited. You’re fragile. You are flawed. And all that is true - but that doesn’t preclude greatness.