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 manor of thy friend’s,
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