 The principle that holds that human beings, despite their differences, are to be regarded as one another’s equals, is often also called ‘human equality’ or ‘basic equality’ or ‘equal worth’ or ‘human dignity’ (William 1962, Vlastos 1962, Kateb 2014, Waldron 2017, Rosen 2018). Whether these terms are synonyms is a matter of interpretation, but “they cluster together to form a powerful body of principle” (Waldron 2017, p. 3).