Some examples of Martin Luther's vulgarities:

"Returning to the issue at hand, if your Papist wishes to make a great fuss about the word "alone" (sola), say this to him: "Dr. Martin Luther will have it so and he says that a papist and an ass are the same thing." Sic volo, sic iubeo, sit pro ratione voluntas. (I will it, I command it; my will is reason enough) For we are not going to become students and followers of the papists. Rather we will become their judge and master. We, too, are going to be proud and brag with these blockheads; and just as St. Paul brags against his madly raving saints, I will brag over these asses of mine!"

"This murmuring proves how happy Christians have been over these blasphemies, and how right they have been in doing them! So out with it, you papal asses! Say that this is the teaching of Christendom: these stinking lies which you villains and traitors have forced upon Christendom and for the sake of which you murderers have killed many Christians"

An Open Letter on Translating By Dr. Martin Luther, 1483-1546 Translated from: "Sendbrief von Dolmetschen"



"For faith is not so light or easy a matter as ignorant and inexperienced people fancy, and as our coarse blockheads, the popish dunces, pretend, who believe that faith is no more than to have heard the history and to know it."
Sermon for Easter Monday; Luke 24:13-35

A Sermon by Martin Luther; taken from his Church Postil. [The following sermon is taken from volume II:283-300 of
The Sermons of Martin Luther]

 

"But the trouble is that these blockheads explain the Scriptures so awkwardly, noticing only the works and examples of the saints and thinking that now they are able to learn from them and imitate them. Thus they become nothing but apes and hypocrites, for they do not perceive that the Scriptures speak more of the heart than of the deeds of men"

Sermon for the Sunday after Christmas; Luke 2:33-40
A Sermon by Martin Luther; taken from his Church Postil of 1522. [The following sermon is taken from volume I:255-307 of The Sermons of Martin Luther]