The humanity of the global age has really new characteristics compared to the past: it is a Humanity non-singular and plural, diverse and not homogeneous. A fragmentation the culture and politics have to consider, knowing that one can neither go back nor to pretend that nothing is happening.
Apart from vacuous and dangerous solutions (full assimilation of the foreigner, the uncritical integration within the citizenship), these pages show possible avenues to defuse the conflict between cultures and to promote, in humanity, concreteness and difference of individuals.