Need Help! Which element or elements are found in the human body that are not found in the atmosphere, crust, or oceans?

The very common element in the earth's crust, silicon, is absent in the human body as well as in most life on Earth

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.