No matter how well a person says or does anything, they will find fault with it, and if you do not humor them you can never please them.
 Martin Luther, Commentary on the Epistle to the Galatians (1535). copy citation

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Author Martin Luther
Source Commentary on the Epistle to the Galatians
Topic humor fault
Date 1535
Language English
Reference
Note Translated by Theodore Graebner
Weblink http://www.gutenberg.org/files/1549/1549-h/1549-h.htm

Context

“Naturally the possessor of such faith will be deceived, but he lets it pass. He is ready to believe all men, but he will not trust all men. Where this virtue is lacking men are suspicious, forward, and wayward and will believe nothing nor yield to anybody. No matter how well a person says or does anything, they will find fault with it, and if you do not humor them you can never please them. It is quite impossible to get along with them. Such faith in people therefore, is quite necessary. What kind of life would this be if one person could not believe another person? MEEKNESS A person is meek when he is not quick to get angry.” source