20. And, here, how pleasantly one's thoughts fly back to those celebrated schools and universities which flourished of old in Europe-to Paris, Salamanca, Alcalá, to Douay, Toulouse, and Louvain, to Padua and Bologna, to Naples and Coimbra, and to many another! All know how the fame of these seats of learning grew with their years, and that their judgment, often asked in matters of grave moment, held great weight everywhere. And we know how in those great homes of human wisdom, as in his own kingdom, Thomas reigned supreme; and that the minds of all, of teachers as well as of taught, rested in wonderful harmony under the shield and authority of the Angelic Doctor.