CHAP,in]
LAW OF NATIONS
43of civilisation. Still, neither the interest nor the security of
Rome
permittedhim
tobe
quite outlawed. All ancientcommunities
ran the risk of beingoverthrown by
a very slight disturbance of equilibrium,and
themere
instinct ofself-preservation
would
force theRomans
to devisesome method
of adjusting the rightsand
duties of foreigners,who might
otherwiseand
thiswas
a danger of real importance in the ancient worldhave
decided their controversiesby armed
strife.Moreover, at
no
period ofRoman
historywas
foreign trade entirely neglected. It
was
therefore probably half as ameasure
of policeand
half in furtherance ofcommerce
thatjurisdictionwas
firstassumed
in disputes towhich
the partieswere
either foreigners or a native
and
a foreigner.The assumption
of such a jurisdictionbrought
withit the
immediate
necessity of discoveringsome
principles
on which
the questions to be adjudicatedupon
could be settled,and
the principles applied to this objectby
theRoman
lawyerswere
emi-nently characteristic of the time.They
refused, as Ihave
said before, to decide thenew
casesby
pureRoman
CivilLaw. They
refused,no doubt
becauseitseemed
toinvolvesome
kindofdegrada-tion, toapply the
law
of the particular Statefrom which
the foreign litigant came.The
expedientto
which
they resortedwas
that ofselecting the rules of
law common
toRome and
to the different Italiancommunities
inwhich
theimmigrants
were born. In otherwords, theyset themselvestoform
asystem
answering to the primitiveand
literalmeaning
of JusGentium,
that is,Law common
to all Nations.Jus Gentium
was, in fact, thesum
44 LAW OF NATURE AND EQUITY
[CHAP,m
of the
common
ingredients in thecustoms
of the oldItaliantribes,fortheywere
allthenationswhom
the
Romans had
themeans
of observing,and who
sent successive
swarms
ofimmigrants
toRoman
soil.
Whenever
a particular usagewas
seen tobe
practisedby
a largenumber
of separate races incommon,
itwas
setdown
as part of theLaw common
to all Nations, orJus Gentium.
Thus, although theconveyance
of propertywas
certainlyaccompanied by
very different forms in thediffer-ent
commonwealths
surroundingRome,
the actualtransfer, tradition, or delivery of the article
in-tended
tobe conveyed was
apart of theceremonial in allofthem. Itwas, for instance,a
part,though a
subordinate part, in theMancipation
orcon-veyance
peculiar toRome.
Tradition, therefore, beinginallprobability theonlycommon
ingredientin the
modes
ofconveyance which
thejurisconsultshad
themeans
of observing,was
setdown
asan
institution Juris
Gentium,
or rule of theLaw common
to all Nations.A
vastnumber
of other observanceswere
scrutinised with thesame
result.Some common
characteristicwas
discovered in allof
them, which had a common
object,and
this characteristicwas
classed in theJus Gentium.
The Jus Gentium was
accordinglya
collection of rulesand
principles,determined by
observation tobe common
to the institutionswhich
prevailedamong
the various Italian tribes.The
circumstances of the origin of theJus Gentium
areprobably
a sufficient safeguard against the mistake of supposing that theRoman
lawyers
had any
special respect for it. Itwas
thefruit in partof their disdainforall foreign law,
and
CHAP, in]
LAW OF NATIONS
45in part of their disinclination to give the foreigner the
advantage
of theirown
indigenousJus
Civile.It is true that we, at the present day, should probably take
a
very differentview
of theJus Gentium,
ifwe were
performing the operationwhich was
effectedby
theRoman
jurisconsults.We
should attachsome vague
superiority or pre-cedence to the elementwhich we had
thusdis-cerned underlying
and
pervadingso greata
varietyof usage.
We
shouldhave
a sort of respect for rulesand
principles so universal.Perhaps we
should speak of the
common
ingredient as being of the essence of the transaction intowhich
itentered,
and
should stigmatise the remaining apparatus ofceremony, which
varied in different communities, as adventitiousand
accidental.Or
it
may
be,we
shouldinfer that the raceswhich we
were comparing
onceobeyed
a greatsystem
ofcommon
institutions ofwhich
the JusGentium was
the reproduction,and
that the complicated usages of separatecommonwealths were
only corruptionsand
depravations of the simpler ordinanceswhich had
once regulated their primi-tive state.But
the results towhich modern
ideasconduct
the observer are, as nearly as possible, the reverse of thosewhich were
instinctively brought,home
to the primitiveRoman. What we
respect or admire, he disliked or regardedwith
jealous dread.The
parts of jurisprudencewhich
he lookedupon
with affectionwere
exactly thosewhich
amodern
theoristleavesout ofconsideration as accidentaland
transitory ; thesolemn
gestures ofthemancipation
; the nicely adjusted questionsand answers
of the verbal contract ; the endless46 LAW OF NATURE AND EQUITY
[CHAP, informalities of pleading
and
procedure.The Jus Gentium was merely
asystem
forcedon
his attentionby
a political necessity.He
loved itas little as
he
loved the foreignersfrom whose
institutions it
was
derivedand
forwhose
benefit itwas
intended.A
complete revolution in his ideaswas
required before it could challenge his respect,but
so completewas
itwhen
it did occur, that the true reasonwhy
ourmodern
estimate ofthe
Jus Gentium
differsfrom
thatwhich
has justbeen
described, is thatboth modern
jurisprudenceand modern
philosophyhave
inherited thematured
views of the later jurisconsultson
this subject.There
didcome
a timewhen, from an
ignobleappendage
of the Jus Civile, theJus Gentium came
tobe
considered a greatthough
as yet imperfectly developedmodel
towhich
alllaw ought
as far as possible to conform. This crisis arrivedwhen
theGreek
theory of aLaw
ofNature was
applied to the practicalRoman
administration of theLaw common
to all Nations.The
Jus Naturale, orLaw
of Nature, is simplythe
Jus Gentium
orLaw
of Nations seen in the light ofa
peculiar theory.An
unfortunateat-tempt
to discriminatethem was made by
the jurisconsult Ulpian, with the propensity to dis-tinguish characteristic of a lawyer,but
thelan-guage
of Gaius, amuch
higher authority,and
the passagequoted
beforefrom
the Institutes, leaveno room
for doubt, that the expressionswere
practically convertible.
The
differencebetween them was
entirely historical,and no
distinction in essence could everbe
establishedbetween
them.Itis almost unnecessary to
add
that the confusionCHAP,in]
NATURE 47 between Jus Gentium,
orLaw common
to allNations,
and
international law is entirelymodern.
The
classical expression for internationallaw
isJus
Feciale, or thelaw
of negotiationand
diplo-macy.
It is, however, unquestionable that indis-tinctimpressionsas to themeaning
ofJus Gentium had
considerable share in producing themodern
theory that the relations of independent states aregoverned by
theLaw
of Nature.It
becomes
necessary to investigate theGreek
conceptions ofNature and
her law.The word
Averts
which was
rendered in the Latin naturaand
ournature,denoted beyond
alldoubt
originally the material universe,but
itwas
the material universecontemplated under an
aspectwhich such
is our intellectual distancefrom
those timesit is not very easy to delineate in
modern
lan-guage.Nature
signified the physicalworld
re-garded
as the result ofsome
primordialelement
or law.The
oldestGreek
philosophershad been accustomed
to explain the fabric of creation as the manifestation ofsome
single principlewhich
they variously asserted to bemovement,
fire, moisture, or generation. In its simplest
and most
ancient sense,Nature
is precisely the physical universe lookedupon
in thisway
asthe manifestation of a principle. Afterwards, the later
Greek
sects, returning to apath from which
the greatest intellects of Greecehad meanwhile
strayed,added
the moral to the physicalworld
in the conception of Nature.
They extended
the
term
till itembraced
notmerely
the visiblecreation,
but
the thoughts, observances,and
aspirations of