Jean Jacques Rousseau (1712–1778). Social Contract & Discourses. 1913.
The Social Contract or Principles of Political Right. Book I.Chapter V. That We Must Always Go Back to a First Convention
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A people, says Grotius, can give itself to a king. Then, according to Grotius, a people is a people before it gives itself. The gift is itself a civil act, and implies public deliberation. It would be better, before examining the act by which a people gives itself to a king, to examine that by which it has become a people; for this act, being necessarily prior to the other, is the true foundation of society.
Indeed, if there were no prior convention, where, unless the election were unanimous, would be the obligation on the minority to submit to the choice of the majority? How have a hundred men who wish for a master the right to vote on behalf of ten who do not? The law of majority voting is itself something established by convention, and presupposes unanimity, on one occasion at least.