Mister Smarty Pants

For everything he's got a stance Can he be wrong? Not even a chance He was tall, handsome, never denied Quick witted, although empty inside What he hated most was uncertainty Built moats round what he wants it to be Got all the answers does Smarty Pants Some fools buy into all his rants His universe is a tiny atom No way to unlock another fathom He doesn't know what he doesn't know That's just the thing, off he'll go Mostly hope he'll be running thin Though he always gets the last word in