89:1.7

There would, however, be no civilized society to sit in criticism upon primitive man except for these far-flung and multifarious taboos, and the taboo would never have endured but for the upholding sanctions of primitive religion. Many of the essential factors in man’s evolution have been highly expensive, have cost vast treasure in effort, sacrifice, and self-denial, but these achievements of self-control were the real rungs on which man climbed civilization’s ascending ladder.