After having criticised and scourged the religions of chimera, of ignorance, and hypocrisy, in "Lo Spaccio della Bestia Trionfante" and in "L'Asino Cillenico," the author, in "Gli Eroici Furori," lays down the basis for the religion of thought and of science. In place of the so-called Christian perfections (resignation, devotion, and ignorance), Bruno would put intelligence and the progress of the intellect in the world of physics, metaphysics, and morals; the true aim being illumination, the true morality the practice of justice, the true redemption the liberation of the soul from error, its elevation and union with God upon the wings of thought. This idea is developed in the work in question, which is dedicated to Sir Philip Sidney. After treating of the infinite universe, and contemplating the innumerable worlds in other works, he comes, in "Gli Eroici Furori," to the consideration of virtue in the individual, and demonstrates the potency of the human faculties. After the Cosmos, the Microcosm; after the infinitely great, the infinitely small. The body is in the soul, the soul is in the mind, the mind is in God. The life of the soul is the true life of the man. Of all his various faculties, that which rules all, that which exalts our nature, is Thought. By means of it we rise to the contemplation of the universe, and becoming in our turn creators, we raise the edifice of science; through the intellect the affections become purified, the will becomes strengthened. True liberty is acquired, and will and action becoming one through thought, we become heroes.