"If the Good and the Beautiful, Peace and Justice cannot be derived either from ontological or scientific-rational conditions, they cannot logically claim universal validity and realization. In terms of scientific reason, they remain matters of preference, and no resuscitation of some land of Aristotelian or Thomistic philosophy can save the situation... the ideas become mere ideals, and their concrete, critical content evaporates into the ethical or metaphysical atmosphere."
January 1, 1970
https://en.wikiquote.org/wiki/Ontology