If someone tries to sell you something with a brain on it … ask to see the evidence. Ask for the part of the story that's not being told.

The quote is a warning against being persuaded by “brain” imagery—claims that invoke neuroscience, intelligence, or scientific authority to make a product, policy, or narrative seem unquestionable. Crockett urges epistemic vigilance: demand evidence, scrutinize what is being implied, and look for omissions that shape the message. The second sentence highlights how persuasion often works through selective storytelling—what is left out (limitations, counterexamples, conflicts of interest, uncertainty) can matter as much as what is presented. Overall, it advocates critical thinking and media literacy, especially when science-adjacent language is used to short-circuit skepticism.