He has never extended his allegiance to any political party, ideology,
or group.... His commitment remains to his own personal vision rather
than to any political line of thought.... He also points out that
his shifting loyalty would make him a poor recruit for any political
organization; his insistence on personal judgment would inevitably
make him a traitor to the group....
-- Diane Maher on Graham Greene, Elements of
Romanticism in Graham Green's Fiction (1987) p.70