Is "defeat" proof that you are weak? Isn't "defeat" more like a trial to overcome? Of whether you can stand up and walk again after falling to you knees? If you remain on your knees like that, then it would be a sign of weakness.
Does losing prove that you are weak? Isn't losing difficult for all of you? A challenge where, after ending up on your hands and knees, you must see if you can stand up again? If you stay on your hands and knees, that proves that you are weak.