Humans have always tried to improve their condition.
Harris
John
J
Quigley
Muireann
M
D024803:Biomedical Enhancement / Q000941:ethics*; D003071:Cognition / Q000187:drug effects; D004560:Electricity; D005139:Eyeglasses / Q000706:statistics & numerical data; D006802:Human Activities / Q000941:ethics*; D006801:Humans