And just to expand on this, Deming's theories are based on the pyschological theory "Maslow's Heirarchy of Needs" which says that the ultimate motivation is "se

And just to expand on this, Deming's theories are based on the pyschological theory "Maslow's Heirarchy of Needs" which says that the ultimate motivation is "self-actualization" - that once you have satisfied more base needs (survival, procreation, money) this is what drives most people to achieve.