I realize that those who are adherents to RCC dogmas may have a different answer. My moral appeal must be to Biblical Christians who look to the Bible as the only proper basis of morality and life. I have no interest in arguing Catholic 'philosophy' -- nor, for that matter, Hindu or Confucian 'philosophy.'
But Thomas Aquinas PRECEDED the "Reformation." Surely Luther et al, particularly Henry VIII did not discard Thomas!!