The range of questions for which we need answers seems limitless and finding the "right" path for global change increasingly utopian. How do we maintain an overview in the face of highly complex interrelationships and interactions? How can we distinguish the essential from the non-essential? What fundamental relationships in nature do we need to take into account? What kind of economy is appropriate? What is just? And under what conditions are people willing to change? The book is aimed at anyone who wants to contribute to the transformation towards sustainability - whether in politics, business, administration or civil society.