" For more than twenty years I was a pious monk, read Mass daily, and so weakened myself with fasting and praying that I would not have been long for this life had I continued. Yet all this taken together cannot help me in even one little crisis to be able to say before God: 'All this I have done, now please consider it, and be gracious to me.' What else did I achieve with this than to plague myself uselessly, impair my health, and waste my time? "

― Martin Luther , Luther's Works, Volume 24 (Sermons on Gospel of St John Chapters 14-16)