You should know this because, when you think about it, you realize that your body is very different today from what it was when, in childhood, you first became conscious of it.
Kufanele wazi lokhu ngoba, lapho ucabanga ngakho, uyaqaphela ukuthi umzimba wakho uhlukile kakhulu kulokhu okwakungakanani ngenkathi, ebuntwaneni, uqala ukuyiqonda.