"This is the programme of Giordano Bruno's magic, according to which 'since no part of the universe is more important than another”, man is not granted that primacy, first biblical and then Cartesian, which sees him as “possessor and ruler of the world”, but simply as “cooperator of active nature (operanti naturae homines cooperatores esse possint)”. This difference is decisive because it unmasks the underlying kinship that, beyond disputes, links the Christian tradition to scientific agnosticism. Both share the belief that man, possessing a soul as religion would have it or rational faculties as science would have it, is, among the entities of nature, the privileged entity that can subjugate all things to himself. To this Cartesian emphasis on the subject (Ego cogito), prepared by the Judeo-Christian tradition (according to which man is the image of God and therefore has the right to dominate all things), Giordano Bruno contrasts a path radically different from that which would characterise European thought for centuries. Not the primacy of man, but the primacy of the ever-unstable and ever-reconstructed balance between subject and object, between man and nature. Magic, which is not power over nature, but the discovery of the bonds that chain all things together, according to Heraclitus' model of “invisible harmony”, is Bruno's philosophical proposal, antithetical both to mathematical science, which feeds on human planning, and to religion, which, while subordinating man to God, does not hesitate to consider him, from the day of his expulsion from the Garden of Eden, the ruler of all things."