" As for the Enneagram, it is a sophisticated typology consisting of nine basic types, numbered from 1 to 9, whose names describe them well: (1) the perfectionist, (2) the giver, (3) the performer, (4) the romantic, (5) the observer, (6) the questioner, (7) the epicure, (8) the protector, and (9) the mediator. "

― Ken Wilber , The Religion of Tomorrow: A Vision for the Future of the Great Traditions-More Inclusive, More Comprehensive, More Complete-with Integral Buddhism as an Example