self-same

— So ſtrictly is the Specific Nature preſerv'd in the Individuals of the ſame kind, vvho all equally partake of it, and are ſo very reſembling and uniform in it, that they ſeem but as ſo many Self-ſames, ſo many Reproductions of one thing, like the Image of the ſame Face repeated by a Multiplying Glaſs. Thus for Inſtance, in Men, there is the ſame common Human Nature in all of them vvithout Intenſion or Remiſſion, the ſame Intellectual Frame, the ſame thinking Principle, the ſame rational Faculties, the ſame Radical Deſires and Inclinations, the ſame Natural Affections, the ſame Springs of Paſſion, &c.

— For both of you are Birds of ſelfe-ſame Feather.