However, although the shapes and energies of things differ, they are equal by nature, none can take the place of another, all are born perfect in themselves, each is allotted all its needs.  How do I know whether they are large or small, long or short, similar or different?

Lieh Tzu, Chapter 5 (99)

     This does not fundamentally undermine Mencius’s point but it does give us pause when we make claims about inequality….