There was something in the purity of his face that rebuked them.

His mere presence seemed to recall to them the memory of the innocence that they had tarnished.

They wondered how one so charming and graceful as he was could have escaped the stain of an age that was at once sordid and sensual.
Often, on returning home from one of those mysterious and prolonged absences that gave rise to such strange conjecture among those who were his friends, or thought that they were so, he himself would creep upstairs to the locked room, open the door with the key that never left him now, and stand, with a mirror, in front of the portrait that Basil Hallward had painted of him, looking now at the evil and aging face on the canvas, and now at the fair young face that laughed back at him from the polished glass.

The very sharpness of the contrast used to quicken his sense of pleasure.

He grew more and more enamoured of his own beauty, more and more interested in the corruption of his own soul.
He would examine with minute care, and sometimes with a monstrous and terrible delight, the hideous lines that seared the wrinkling forehead or crawled around the heavy sensual mouth, wondering sometimes which were the more horrible, the signs of sin or the signs of age.