Maslow's Hierarchy of Needs
Maslow used the terms ‘physiological', ‘safety', ‘belongingness' and ‘love', ‘esteem', ‘self-actualization', and ‘self-transcendence' to describe the pattern that human motivations generally move through, in a ranked and building fashion.
Origin
American psychologist Abraham Maslow proposed his hierarchy in his 1943 paper "A Theory of Human Motivation" in Psychological Review, presenting a universal set of distinct motives progressing from basic biological needs to psychological and spiritual needs. Maslow presumed five levels: physiological (most prepotent), safety, affection, esteem, and self-actualization (the desire "to become everything that one is capable of becoming"). Importantly, Maslow stressed that needs don't require 100% satisfaction before the next emerges. He later added a sixth level of "meta-needs." Notably, Maslow himself did not create the iconic pyramid diagram.