118:8.5

The whole principle of biologic evolution makes it impossible for primitive man to appear on the inhabited worlds with any large endowment of self-restraint. Therefore does the same creative design which purposed evolution likewise provide those external restraints of time and space, hunger and fear, which effectively circumscribe the subspiritual choice range of such uncultured creatures. As man’s mind successfully overstrides increasingly difficult barriers, this same creative design has also provided for the slow accumulation of the racial heritage of painfully garnered experiential wisdom—in other words, for the maintenance of a balance between the diminishing external restraints and the augmenting internal restraints.