“... everyone thinks he’s so smart, wonderful Potter with his scar and his broomstick —” [Draco]
“You have told me this at least a dozen times already,” said Mr. Malfoy, with a quelling look at his son. “And I would remind you that it is not — prudent — to appear less than fond of Harry Potter, not when most of our kind regard him as the hero who made the Dark Lord disappear.”

Harry Potter and the Chamber of Secrets - Chapter 4 : At Flourish and Blotts
See this quote in the Pensive -