The Devil, it is true, is not exactly a doctor who has taken degrees, but he is very learned, very expert for all that. He has not been carrying on his business during thousands of years for nothing.
Martin LutherThe kingdom of God does not consist in talk, but in power, that is, in works and practice. God loves the 'doers of the word' in faith and love, and not the 'mere hearers,' who, like parrots, have learned to utter certain expressions with readiness.
Martin LutherThat little bird has chosen his shelter. Above it are the stars and the deep heaven of worlds. Yet he is rocking himself to sleep without caring for tomorrow's lodging, calmly clinging to his little twig, and leaving God to think for him.
Martin Luther