Stress is the momentary stress that occurs in response to life experiences

The momentary stress which occurs because of the experiences of one's life is the 'acute stress'.

Acute stress is the psychological condition which is the most common form of stress. The pressure and demands of the life induces acute stress in people, which is beneficial in small doses. When the person is too much stresses it may take tool on his health and affect his abilities.

Hence, the blank can be filled with 'acute'.

you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.

therefore, what enabled the old regime to maintain as long as it did was private property.

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