In one study, business executives who scored very high on the index of stressful life events seemed impervious to the physical effects of stress in that they had few illnesses. in this study, these executives shared the personality characteristic of:

The concept of Hardiness, otherwise known as personality hardiness was presented by Suzanne C. Kobasa in the year 1979. Kobasa describes that those in administrative jobs like managers etc. stay and maintain their health under life stress as compared to others. 

what group of people depend on what yoy are talking i will still you once you tell me what group of people you are talking about : )

i think i know what group you are talking about so the brahmins

earlier philosophers whose work influenced the enlightenment included bacon, descartes, locke, and spinoza. the major figures of the enlightenment included beccaria, diderot, hume, kant, montesquieu, rousseau, adam smith, and voltaire. it spread the ideas of the enlightenment across europe and beyond.