you might , realistically , think in terms of a small oil-producing nation and i do not exaggerate - and of policies aimed at conserving and protecting rather than expanding and developing , because when capital in this amount is properly conserved against inflation or any other erosion or encroachment , the expansion is virtually unstoppable , and the development in countless directions is inevitable , and you are faced with the day-to-day issue of investing revenues so large that ... ' 'you 're talking billions , ' she said in a quiet voice .