The above definition has two key concepts embedded within it. First the concept of 'needs', in particular the essential
needs of the world's poor, to which overriding priority should be given; and the idea of limitations imposed by the state
of technology and social organization on the environment's ability to meet present and future needs. Also, the
definition places human beings at the centre of concept of sustainable development as individuals entitled to a healthy
and productive life in harmony with nature. In sum, all life sustaining processes, production outcomes, and
consumption endeavors should be sustainable.