In his book The Structure of Science Evolution, Thomas Khum defines a paradigmas “a set of beliefs, values and accepted techniques that define the exercise of a scientific discipline”. A new paradigm is a change of vision, a reconstruction of our knowledge in the light of discoveries; in the words of Socratics, “all cognition is a recognition”.In his book The Structure of Science Evolution, Thomas Khum defines a paradigmas “a set of beliefs, values and accepted techniques that define the exercise of a scientific discipline”. A new paradigm is a change of vision, a reconstruction of our knowledge in the light of discoveries; in the words of Socratics, “all cognition is a recognition”