Graham Greene said this quote

How often the priest had heard the same confession--Man was so limited: he hadn't even the ingenuity to invent a new vice: the animals knew as much. It was for this world that Christ had died: the more evil you saw and heard about you, the greater the glory lay around the death; it was too easy to die for what was good or beautiful, for home or children or civilization--it needed a God to die for the half-hearted and the corrupt.