Luther on true and false theologians (and donkeys)
The inimitable Luther on true theologians:
For as soon as God's Word takes root and grows in you, the Devil will harry you and will make a real theologian of you, for by his assaults he will teach you to seek and love God's Word. I myself am deeply indebted to my critics, that through the Devil's raging they have beaten, oppressed, and distressed me so much. That is to say, they have made a fairly good theologian of me, which I would not have become otherwise.
And Luther on false theologians (and donkeys): If, however, you feel and are inclined to think you have made it, flattering yourself with your own little books, teaching, or writing, because you have done it beautifully and preached excellently; if you are highly pleased when someone praises you in the presence of others; if you perhaps look for praise, and would sulk or quit what you are doing if you did not get it--if you are of that stripe, dear friend, then take yourself by the ears, and if you do this in the right way you will find a beautiful pair of big, long, shaggy donkey ears. Then do not spare any expense! Decorate them with golden bells, so that people will be able to hear you wherever you go, point their fingers at you, and say, "See, See! There goes that clever beast, who can write such exquisite books and preach so remarkably well." That very moment you will be blessed and blessed beyond measure in the kingdom of heaven. Yes, in that heaven where hellfire is ready for the Devil and his angels.