Final answer:
Voltaire is the Enlightenment thinker likely to have said the quote.
Step-by-step explanation:
The Enlightenment thinker who likely said the quote, "If you want to know who controls you, look at who you are not allowed to criticize," is Voltaire. Voltaire was a French philosopher and writer known for his advocacy of freedom of speech and criticism of religious and political authorities.
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