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 LutherThere is no wisdom save in truth. Truth is everlasting, but our ideas about truth are changeable. Only a little of the first fruits of wisdom, only a few fragments of the boundless heights, breadths and depths of truth, have I been able to gather.
Martin LutherThe Bible is the proper book for men. There the truth is distinguished from error far more clearly than anywhere else, and one finds something new in it every day. For twenty-eight years, since I became a doctor, I have now constantly read and preached the Bible; and yet I have not exhausted it but find something new in it every day.
Martin Luther