• Two magnitudes whether commensurable or incommensurable, balance at distances reciprocally proportional to the magnitudes.

    Archimedes: Two magnitudes whether commensurable or incommensurable, balance at distances reciprocally proportional to the magnitudes.
    "On the Equilibrium of Planes". Treatise by Archimedes, Book 1, Propositions 6 & 7, The Law of the Lever,