“This polarization of two clinical states flies in the face of everything that we know about the cauldronous, fluctuating nature of manic-depressive illness; it ignores the question of whether mania is, ultimately, simply an extreme form of depression; and it minimizes the importance of mixed manic-and-depressive states, conditions that are common, extremely important clinically, and lie at the heart of many of the critical theoretical issues underlying this particular disease.”
