In this monumental memoir, Thomas d'Aquino offers personal insights on four decades of bold leadership at the apex of power. A transforming force in redefining the role of business and the shaping of responsible capitalism, Canada's private sector leader in advancing the free trade agreement with the United States, valiant defender of national unity, and passionate environmentalist, he has been at the centre of every major policy debate that has influenced contemporary Canada. Referred to by his peers as "Canada's leading business ambassador," Private Power, Public Purpose chronicles exploits on five continents and describes how he has championed Canada's place as an economic player on the world stage. His insights on leadership are timeless, honed from relationships with six Canadian prime ministers, over 1000 chief executives, and dozens of global leaders. Beyond business and public policy, Thomas d'Aquino's fascinating adventures in the world of voluntarism, the arts, and philanthropy reveal a great deal about the soul of this remarkable Canadian.