“It is the same with the State... the common interest and the public right of all the individuals who have formed the contract among themselves, with the exclusion of all those who remain outside the contract. It is; consequently, nothing but the greatest satisfaction given to the collective egotism of a special and restricted association, which, being founded upon the partial sacrifice of the individual egotism of each of its members, rejects from its midst, as strangers and natural enemies, the immense majority of the human species, whether or not it may be organized into analogous organization.”