Since he had last seen it, the gargoyle guarding the…

““Since he had last seen it, the gargoyle guarding the entrance to the headmaster’s study had been knocked aside; it stood lopsided, looking a little punch-drunk, and Harry wondered whether it would be able to distinguish passwords anymore. “Can we go up?” he asked the gargoyle. “Feel free,” groaned the statue. They clambered over him and onto the spiral stone staircase that moved slowly upward like an escalator. Harry pushed open the door at the top. He had one, brief glimpse of the stone Pensieve on the desk where he had left it, and then an earsplitting noise made him cry out, thinking of curses and returning Death Eaters and the rebirth of Voldemort-- But it was applause. All around the walls, the headmasters and headmistresses of Hogwarts were giving him a standing ovation; they waved their hats and in some cases their wigs, they reached through their frames to grip each other’s hands; they danced up and down on the chairs in which they had been painted; Dilys Derwent sobbed unashamedly; Dexter Fortescue was waving his ear-trumpet; and Phineas Nigellus called, in his high, reedy voice, “And let it be noted that Slytherin House played its part! Let our contribution not be forgotten!” But Harry had eyes only for the man who stood in the largest portrait directly behind the headmaster’s chair. Tears were sliding down from behind the half-moon spectacles into the long silver beard, and the pride and the gratitude emanating from him filled Harry with the same balm as phoenix song.””

— J.K. Rowling