As quoted in The Volta Review (1934), p. 574 http://books.google.de/books?id=qWE4AQAAIAAJ&q=hate, Clifton Fadiman: The American Treasury 1455-1955 (New York 1955) p. 997 http://books.google.de/books?id=PEQ4AAAAIAAJ&q=really+make+them and Hugh Rawson, Margaret Miner: The Oxford Dictionary of American Quotations (2006) p. 431 #5 http://books.google.de/books?id=whg05Z4Nwo0C&pg=PA431&dq=mehitabel from archy and mehitabel (1927)
Variant: If you make people think they're thinking, they'll love you; but if you really make them think, they'll hate you.
Don Marquis: Quotes about thinking
Don Marquis was American writer. Explore interesting quotes on thinking.The Almost Perfect State (1921)
mehitabel and her kittens http://donmarquis.com/reading-room/kittens/
archy and mehitabel (1927)
“it is a cheering thought to think
that god is on the side of the best digestion”
the big bad wolf
archy does his part (1935)
archy and mehitabel (1927), what the ants are saying
the robin and the worm