Maslow’s Hierarchy of Needs classifies high-strength motives. The model consists of five needs: physiological, safety, social, esteem, and self-actualization. Maslow says that human needs arrange themselves into a hierarchy, thus a diagram is needed to display how this actually works. According to Maslow’s research, no one can move on to the next level without first fulfilling the most basic of needs. Once physiological needs become satisfied, the safety, or security needs become predominant.