One citizen differs from another, but the salvation of the community is the common business of them all. This community is the constitution; the virtue of the citizen must therefore be relative to the constitution of which he is a member.

Politica, by B. Jowett. Oeconomica, by E. S. Forster. Atheniensium respublica, by Sir F. G. Kenyon. 1921 (ed. 1921)