Time's the thief of memory
Humor is almost always anger with its make-up on.
Go now. Our journey is done. And may we meet again, in the clearing, at the end of the path.
The world had moved on and all that was over, done before fairly begun.
Tell him he's wrong. Tell him that even if he's right about waiting, he's right for the wrong reasons, and that makes him all the way wrong.
Just remember that Dumbo didn't need the feather; the magic was in him.