If we ask for something more than simplicity, it is silly then to complain that the something more is not simple.
 C. S. Lewis, Mere Christianity (1952). copy citation

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Author C. S. Lewis
Source Mere Christianity
Topic simplicity complaining
Date 1952
Language English
Reference
Note Adapted from a series of BBC radio talks made between 1942 and 1944
Weblink https://www.dacc.edu/assets/pdfs/PCM/merechristianitylewis.pdf

Context

“And if you are content to stop there, well and good. But if you are not—and the modern world usually is not—if you want to go on and ask what is really happening—then you must be prepared for something difficult. If we ask for something more than simplicity, it is silly then to complain that the something more is not simple. Very often, however, this silly procedure is adopted by people who are not silly, but who, consciously or unconsciously, want to destroy Christianity. Such people put up a version of Christianity suitable for a child of six and make that the object of their attack.” source