John Donne (1572-1631), Meditation
No man is an island, entire of itself; every man is a piece of the continent, a part of the main.
Richard Jenkyns, Virgil's Experience. Nature and History: Times, Names, and Places
(Oxford: Oxford University Press, 1998), p. 3:
Every man is an island, entire of himself; an island, however, which is part of an immense archipelago encompassing innumerable specks of land, each with its own shape and pattern, its distinct configuration of rock and inlet, yet all ruffled by the same breezes, fretted by the same unceasing seas. The historian is a species of surveyor or cartographer; his task is to map these territories.