No man is an island entire of itself;
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 any manner 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 (1624)