 Strict right and equity, he explains, correspond to Grotius’ distinction between perfect and imperfect rights (PW, “Codex Iuris Gentium,” p. 172). Unlike Grotius, however, Leibniz views this distinction as one of degree rather than as one of kind. Also, equity, the second grade of justice, comprehends strict right within its scope, and strict right and equity are comprehended under the third and highest grade of justice, namely, piety.