Abstract
In the 20th century Phenomenology tries to redefine the relation man-world in view of experience and perception; in these areas some traditional categories of philosophy, often structured dichotomously, such as subject/object, sensitive world/idea, phenomenon/being, are called into question. Within this framework, after the culminating phase of Phenomenology of Perception in 1945, the Maurice Merleau-Ponty’s thought evolves toward the search of a new ontology: all of this happens in ‘The visible and the invisible’where, reading Proust, he is led to create new words and expressions in philosophy, like ‘sensitive ideas’ and ‘meat’. The topic lends itself for an interdisciplinary teaching unit about philosophy and literature for learners.