Will mainstream neoclassical economics be helpful and enough in dealing with present unsustainable development? Or, should we try alternative schools of thought in the sense of conceptual framework and language? In this essay the latter option is chosen. It is argued that new views of individuals, organizations, markets etc. are needed. A new definition of economics is even suggested where the multidimensional nature of sustainability issues together with a democracy-oriented view of the discipline is emphasized. Assessment of investment alternaives in a democratic society is outlined as well as elements of a politics for sustainable development. Considering the seriousness of the problems faced, there is no good excuse for avoiding the more fundamental issues of paradigm and ideology with its influence on the functioning of our political economic system.