This is a great addition to Midgley's moral philosophy writing but as she states herself in the great introduction some of the essays are really meant for an academic audience, as a result they arent that accessible or engaging but instead are like the material which fills journals of point and counterpoint.
As in other more accessible reads like
Beast and Man: The Roots of Human Nature (Routledge Classics) or
Wickedness (Routledge Classics): A Philosophical Essay Midgley tries to steer a path through extremes of position, arguing against fundamentalists of most philosophical camps (in this instance specifically those which see individuals as mechanistically biological entities and those which see them as blank slates).
It is a good read, however, I wouldnt begin with this book if you are new to either Midgley or moral philosophy, Midgley writes very accessible moral philosophical books and has successfully popularised moral philosophy in other books.