Living with Matisse, Picasso, and ChristoAhrenberg’s ever-evolving collection was shaped by his commitment to the changing notion of contemporary art, his dedication to young and marginalized artists, and a self- declared conviction that he was not merely a collector but one who facilitated exhibitions, collaborations, and commissions, and who employed art as an instrument against conservatism and complacency. Ahrenberg passionately believed in personally meeting those artists whose works he acquired, and he accordingly established rich, long-term friendships that transcended the conventional artist-collector dynamic.