"Well, if you're sure – better be GRYFFINDOR!"
-- Sorting Hat (PS7)
At the Sorting Ceremony, Harry is worried that he won’t be accepted, that the Hat will tell him he has to go back to the Dursleys. He thinks, “The hat seemed to be asking rather a lot; [he] didn’t feel brave or quick-witted or any of it at the moment. If only the hat had mentioned a house for people who felt a bit queasy, that would have been the one for him.” However, he is sorted into Gryffindor after telling the Sorting Hat that he does not want to be put into Slytherin.