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//=== digest of http://en.wikipedia.org/wiki/Maslow%27s_hierarchy_of_needs
Maslow’s Hierarchy of Needs
a theory in psychology, proposed by Abraham Maslow in his 1943 paper "A Theory of Human Motivation,"

D-Needs(Deficiency needs):
physiological : food, air, water, sunlight, sex, sleep, excretion
safety: employment, property, health, body security from crime
social(Love/Belonging): friendship, intimacy, supportive family/network
esteem

B-Needs(Growth/Being Needs):
self-actualization/self-accomplishment
aesthetic:


//=== Criticism
"the hierarchy of needs is nothing more than a fool's daydream; there is no possible way to classify ever-changing needs as society changes"[6]. Chilean economist and philosopher Manfred Max Neef has also argued fundamental human needs are non-hierarchical, and are ontologically universal and invariant in nature - part of the condition of being human; poverty, he argues, is the result of any one of these needs being frustrated, denied or unfulfilled.