„Though I think that man has from nature the capacity of living, either by prey, or upon the fruits of the earth; it appears to me, that by nature, and in his original state, he is a frugivorous animal, and that he only becomes an animal of prey by acquired habit.“
Of the Origin and Progress of Language (Edinburgh and London: J. Balfour and T. Cadell, 2nd ed., 1774), Vol. I, Book II, Ch. II, pp. 224-225 https://archive.org/stream/originandprogre01conggoog#page/n251/mode/2up.