CARTESIAN, adj. Relating to Descartes, author of 'Cogito ergo sum' to demonstrate the reality of human existence. The dictum might be improved 'Cogito cogito ergo cogito sum' 'I think that I think, therefore I think that I am' as close an approach.
Ambrose BierceMAMMALIA, n.pl. A family of vertebrate animals whose females in a state of nature suckle their young, but when civilized and enlightened put them out to nurse, or use the bottle.
Ambrose Bierce