I became, in other words, more like Holmes than the man himself:

I became, in other words, more like Holmes than the man himself: brilliant, driven to a point of obsession, careless of myself, mindless of others, but without the passion and the deep-down, inbred love for the good in humanity that was the basis of his entire career. He loved the humanity that could not understand or fully accept him; I, in the midst of the same human race, became a thinking machine.