 On reading the comparisons, a pattern emerges. Al-Fārābī starts from a theory of the regime of concepts (cf.  Section 2  above), and his chief concern is how well Arabic reflects this regime. The role of “other languages” is always to illustrate how other languages reflect the regime of concepts where Arabic fails to do so. As Menn puts it, “in practice, his reconstructed Greek serves as an ideal logical language, i.e. a language in which grammatical form always tracks logical form” (2008: 68).