Emily Katz Anhalt teaches classical languages and literature at Sarah Lawrence College in Bronxville, New York. She is the author of "Enraged: Why Violent Times Need Ancient Greek Myths" and "Embattled: How Ancient Greek Myths Empower Us to Resist Tyranny."
"When two proceed together, one sees what is advantageous before the other," claims a warrior in Homer's "Iliad," an archaic Greek epic tale from nearly 3000 years ago. Choosing a companion for a daring venture, this warrior knows that a friend's assistance improves the chances of success.