The ecofeminism-deep ecology debate focused on two features of special significance to ecofeminist philosophy. The first is deep ecology's criticism of canonical Western philosophy for its anthropocentric (human-centered) thinking about human-nature relationships. The second is the notion of the self that is described by deep ecology's basic “principle of self-realization”. Both features are critiqued by Val Plumwood, one of the pioneers of ecofeminist philosophy (Plumwood 1993). Her critique is summarized here since it provides insight into some basic claims of ecofeminist philosophy (Section 3).  