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Personality is as personality does.

Several blocks from Harvard’s massive psychology tower, aptly named William James Hall, there is a quiet, tree-lined street tucked away around an easily missed corner. Walking into the shady recesses of this neighborhood, one can quickly forget the surrounding world of academia that exists only minutes away. It is a refuge of sorts, a tranquil place for a thinker or a writer to practice their art relatively undisturbed. It was on this street, in a well-kept and book-lined Victorian house, that I had my first introduction to the study of personality, or “personology” as it was called by the home’s owner andoneof the founding fathers of thefield, the great Henry A.Murray (1893–1988). Thememories of my several meetings with Professor Murray (henceforth referred to simply as “Murray”) and their imprint on my understanding of personality have been long-lasting, in line with the experiences of thousands of other students and clinicians who have benefited from his work, a lineage that is now nearly untraceable. His perspectives on personality, coupled with his admonishments about the risks of an overly reductionistic approach, are still valuable today. In the special section on late-life personality disorders (PDs) in this issue of the American Journal of Geriatric Psychiatry, the spirit of Murray’s work is a welcome guest as both guiding giant and impish sprite; it provides us with some fundamental truths about personality theory at the same time it upends our current paradigm, represented by theDiagnostic and Statistical Manual of Mental Disorders (DSM–IV–TR) nomenclature.