Quote Origin: Mathematics Is the Simple Bit. It’s the Stuff We Can Understand. It’s Cats That Are Complicated

John Horton Conway? Mariana Cook? Alexander Masters? Apocryphal? Question for Quote Investigator: A prominent mathematician once said something like the following: Mathematics is simple. Cats are complicated. Would you please help me to find the correct phrasing and the name of the mathematician? Reply from Quote Investigator: Channel 4 of the BBC broadcast a series …