ABSTRACT

Humanity is facing particularly grave problems and challenges at present: we still have not achieved peace and security based on justice and freedom in the world; huge numbers of our planet’s inhabitants live in deplorable conditions of poverty; the rich countries continue to be shackled to a model of economic growth whose impact on the environment jeopardizes the sustainability of life for future generations; loss of cultural diversity is impoverishing, perhaps irreversibly, one of humanity’s most important characteristics.