The Degrees of Knowledge is a 1932 book by the French philosopher Jacques Maritain,[1] in which the author adopts St. Thomas Aquinas’s view called critical realism and applies it to his own epistemological positions.

The objects of metaphysical knowledge can range from possibilities that are beyond the scope of what we know to be physically true.

He claims that the wisest people are those who ‘recognize the existence of God.’ The second form of wisdom he discusses is knowledge by analogy.

The teachings of Saint Thomas – or Thomism – is similar to Augustinianism yet are more universal and technical.

Saint John of the Cross, The Practician of the Contemplative Life Maritain discusses the difference between communicable and incommunicable Knowledge.

[1] The philosopher Adolf Grünbaum argued that Maritain presents an incorrect interpretation of the nature of geometry.