In this monumental first volume, Peter Sloterdijk embarks on a groundbreaking analysis of cynicism as the dominant consciousness of the modern era. He distinguishes the bold, provocative 'kynicism' of ancient philosophers like Diogenes from the passive, 'enlightened false consciousness' of today's cynic, who understands the world's flaws but remains inactive. Sloterdijk traces the historical and philosophical roots of this condition, diagnosing the pervasive malaise and disillusioned intelligence that characterize contemporary society. This work is an essential and challenging text for anyone interested in modern philosophy, critical theory, and the complex psychology of our times.