ev ident ly ▁and ▁intr ins ically ▁worth while , ▁and ▁states ▁that ▁these ▁goods ▁reve al ▁themselves ▁as ▁being ▁in comm ens urable ▁with ▁one ▁another . ▁ ▁The ▁t ensions ▁between ▁the ▁natural ▁law ▁and ▁the ▁positive ▁law ▁have ▁played , ▁and ▁continue ▁to ▁play , ▁a ▁key ▁role ▁in ▁the ▁development ▁of ▁international ▁law . ▁ ▁See ▁also ▁ ▁Notes ▁ ▁References ▁▁ ▁Adams , ▁John . ▁ 1 7 9 7 . ▁A ▁Def ence ▁of ▁the ▁Constitution s ▁of ▁Government ▁of ▁the ▁United ▁States ▁of ▁America . ▁ 3 rd ▁edition . ▁Philadelphia ; ▁repr . ▁D arm stadt , ▁Germany : ▁Scient ia ▁Verlag ▁A alen , ▁ 1 9 7 9 . ▁ ▁Arist ot le . ▁Nic om ache an ▁Eth ics . ▁ ▁Arist ot le . ▁Rh et or ic . ▁ ▁Arist ot le . ▁Polit ics . ▁ ▁Aqu inas . ▁Sum ma ▁The olog ica . ▁ ▁Bar ham , ▁Francis . Introduction ▁to ▁The ▁Political ▁Works ▁of ▁Marcus ▁Tul lius ▁Cic ero . ▁ ▁Black stone , ▁William . ▁ 1 7 6 5 – 9 . ▁Comment aries ▁on ▁the ▁La ws ▁of ▁England . ▁ ▁B ote in , ▁Stephen . ▁ 1 9 7 8 . ▁" C ic ero ▁as ▁Ro le ▁Model ▁for ▁Early ▁American ▁Law y ers : ▁A ▁Case ▁Study ▁in ▁Class ical ▁' Infl u ence ' ". ▁The ▁Class ical ▁Journal ▁ 7 3 , ▁no . ▁ 4 ▁(