In 1943, psychologist Abraham Maslow theorized that all human needs aren't created equal; in fact, their interdependence can be best visualized by categorizing and arranging them on a triangle-shaped chart. At the bottom of Maslow's Hierarchy of Needs are basic survival staples—food, water, shelter—and at the top, the… » 12/30/14 9:00am 12/30/14 9:00am