No man is an Island, entire of it self; every man is a piece of the
Continent, a part of the main; if a clod be washed away by the sea,
Europe is the less, as well as if a promontory were, as well as if a
manor of thy friends or of thine own were; any man's death diminishes
me, because I am involved in Mankind; And therefore never send to know
for whom the bell tolls; it tolls for thee.
-- John Donne (c.1571-1631)
-- Devotions upon Emergent Occasions (1624) "Meditation XVII"