21. Take in a great breath of air and then blow it out. Contained in that single breath were at least three nitrogen atoms that were breathed by every human being who ever lived, including Jesus Christ, William Shakespeare, Winston Churchill, and every President of the United States. This illustrates the fact that everything we do affects other people, positively or negatively. That’s why it is foolish to say, “Do your own thing if it doesn’t hurt anybody else.” Everything we do affects other people.

Life on the Edge: The Next Generation's Guide to a Meaningful Future