Sacks claims that he is trying to mix two different parts of his personality. Which two parts are these and how does he attempt to mix them?

The two parts of Sacks' personality are his identity as a clinician and as a romantic. The clinician in his is a neuroscientist and studies neurological defects in him. The romantic in him focuses on the personal struggles of his patients. He attempts to mix them by creating heroic narratives for his patients while interspersing neurological explanations.