Agostino Nifo or Augustini Niphi (c. 1473 – 1538 or 1545) was an Italian philosopher and commentator.
In 1495 he produced an edition of the works of Averroes; with a commentary compatible with his acquired orthodoxy. In the great controversy with the Alexandrists he opposed the theory of Pomponazzi, that the rational soul is inseparably bound up with the material part of the individual, and hence that the death of the body carries with it the death of the soul. He insisted that the individual soul, as part of absolute intellect, is indestructible, and on the death of the body is merged in the eternal unity.
His numerous commentaries on Aristotle were widely read and frequently reprinted, the best-known edition being one printed at Paris in 1654 in fourteen volumes (including the Opuscula).
Other works were De Auguriis (Bologna, 1531) and a commentary on Ptolemy.
The famous phrase, to 'think with the learned, and speak with the vulgar' is attributed to Nifo.1
[2] F. Edward Cranz, 'Two debates about the intellect: 2) Nifo and the Renaissance philosophers,' in Idem, Reorientations of Western Thought from Antiquity to the Renaissance (Aldershot, Ashgate, 2006) (Variorum Collected Studies Series).