Constitutional differences in individuals generate preferences among ways of relating to self, and to culture and to the world, i.e., generate values. These researches support and are supported by the universal experience of clinicians with individual differences. This is also true of the ethnological data that make sense of cultural diversity by postulating that each culture selects for exploitation, suppression, approval or disapproval, a small segment of the range of human constitutional possibilities. This is all in line with the biological data and theories and self-actualization theories which show that an organ system presses to express itself, in a word, to function. The muscular person likes to use his muscles, indeed, has to use them in order to self-actualize, and to achieve the subjective feeling of harmonious, uninhibited, satisfying functioning which is so important an aspect of psychological health. People with intelligence must use their intelligence, people with eyes must use their eyes, people with the capacity to love have the impulse to love and the need to love in order to feel healthy. Capacities clamor to be used, and cease their clamor only when they are used sufficiently. That is to say, capacities are needs, and therefore are intrinsic values as well. To the extent that capacities differ, so will values also differ.
Page 117 Towards A Psychology of Being, Maslow
Running Down Vimy 