"Getting up rather unsteadily, hopping indeed from foot to foot, he considered Mrs. Filmer's nice clean bread knife with "Bread" carved on the handle" (149).
This is easily the most heartbreaking sentence I've ever read. Unlike Bradshaw and Holmes, who never seem to show any humanity or empathy from their high perch, just before Septimus leaps from his, he cannot help but spare Mrs. Filmer's grandmotherly cutlery from sharing his gruesome fate. The contrast here is frightening; these doctors can neither understand nor care about the patient entrusted to them, but the supposed mad man can, in the final seconds of his life, show nothing but compassion for this stranger and concern for affects.
Holmes rushes up the staits, never doubting that he knows best as he pushes Rezia aside and barrels into the room. He never considers that his violent and unwelcome entrance may cause rather than present Septimus' death. He also does a lot of talking, and everything he says is false; he does not "come as a friend", and Septimus is neither "In a funk", nor a "coward". Despite all of his pronouncements, his words contain not a single morsel of truth; rather, after all his speech, he can only say to himself that he has no idea "why the devil [Septimus] did it" (150). Holmes is, thus, either lying to himself or exceptionally stupid.
Unlike the doctors, Septimus and Rezia are able to move throughout the scene and think correctly without speaking; Rezia does not say anything, rather, "she saw; she understood". Septimus does not need to speak, but rather is able to make a series of rational and empathic decisions in the moments before his suicide. Whereas Holmes has nothing but bluster and ignorance, coupled with the need to pronounce his thoughts on the world, Rezia and Septimus' quiet manner allow them insight and agency. By giving up the ability and conquering the need to conquer and colonize with speech, Septimus has gained a greater empathy and agency than the quacks who drive him out the window.