St Thomas concluded that therefore she could not 'resemble' Christ or be his 'image'. But surely such reasoning contradicts Scripture itself, let alone a better philosophy of human dignity. Read Thomas himself. The female sex cannot signify eminence of degree. Women's inability to be ordained is based on a presumed, threefold inferiority of women.
Women are biologically inferior .
Following Aristotle's view of procreation , Aquinas believed that a woman is born by some defect in the generative process. A woman is a 'defective male' . The biologically secondary status is also clear from the belief that the male seed contains the generative power. This view was common among the Fathers . Women are socially inferior.