This is what I have called guessing the hidden eccentricities of life. This is knowing that a man’s heart is to the left and not in the middle. This is knowing not only that the earth is round, but knowing exactly where it is flat. Christian doctrine detected the oddities of life. It not only discovered the law, but it foresaw the exceptions. Those underrate Christianity who say that it discovered mercy; anyone might discover mercy. In fact everyone did. But to discover a plan for being merciful and also severe⁠— that was to anticipate a strange need of human nature. For no one wants to be forgiven for a big sin as if it were a little one. Anyone might say that we should be neither quite miserable nor quite happy. But to find out how far one may be quite miserable without making it impossible to be quite happy⁠—that was a discovery in psychology. Anyone might say, “Neither swagger nor grovel”; and it would have been a limit. But to say, “Here you can swagger and there you can grovel”⁠—that was an emancipation.