No man is an island. This is a true statement because an island is alone, and is not connected to any other piece of land. Men (or people) on the other hand are "part of the continent..." We are all connected to each other, as a continent is a bunch of connected land. We as people are all part of humankind. You and I, for example, are connected through this website.
When the author comments about his connection to the rest of the humans on Earth, he makes the statement, "Any a man's death diminishes me," which shows that the author believes that we as people are all connected, and that the loss of one is the loss of a piece of us all.
Does that help any?
