Abstract

Epicurus holds, in _Key Doctrine_ 31, that what is just according to nature is a _súmbolon_ or sign of the interest there is in neither harming one another nor being harmed. Certain readings of this maxim equivocate this legal sign with other signs found in nature, thereby failing to give sufficient weight to the role of reciprocity in its production. Other readings simply import a legal sense from outside of Epicurean doctrine, thereby failing to explain what makes Epicurean _súmbola_ legal. A final set of readings attempt to find a legal rule as a kind of innate concept or Kantian ‘scheme’. This article identifies new sources for understanding _súmbolon_, drawn principally but not exclusively from Aristotle’s _Eudemian Ethics_. This article offers an original argument that Epicurus adopts Aristotle’s’ image of the tally stick (_symbolon_) as a meeting of often divergent interests which constitutes something new and particularly valuable to the Epicurean: friendship. A theoretical argument is also advanced to support this reading which claims that one person’s reflection on a ‘divine image’ of the end (_telos_) is insufficient to constitute a _súmbolon_; rather real (as opposed to abstract or ideal) individual interests are filtered via the mechanism of the tally, that is via the meeting of two given individuals who together generate a sign (_symbolon_) of reciprocal interest in neither harming nor being harmed.