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The texts about ethics assembled in this book reveal meaningful lines of thinking: — The intelligence of action leads to a quest for the meaning of human existence, the reality of its presence in the world and the possibility of its opening to Transcendence. On the horizon of this quest appears the problematic of living a good life. — In intersubjectivity, the person, in whom the fundamental dimensions of the human being are united, becomes the vector of the dynamism of humanisation. This constitutes the authentic ethical exigency which must be sustained if the dignity of all subjects is to be honoured. — In the complexity of human relations, the subject experiences the vulnerability of his/her being the tragic reality of an existence marked by multiple painful experiences constantly questions each one of us on the signification of a hope capable of renewing the lives of all humans.