The best proof that Christ has risen is that he is still alive. And for the immense majority of our contemporaries, the only way of seeing him alive is for us Christians to love one another.
God will of necessity always be a hidden God. His loudest cry is silence. If he does not manifest himself to us, we will say that he hides himself. And if he manifests himself, we will accuse him of veiling himself. Ah! it is not easy for God to make himself known to us!