The world has lost a rare and extraordinary leader with the passing of His Highness Prince Karim Aga Khan IV. A man of vision, intellect, and unwavering commitment, he was not only the 49th hereditary Imam of the Shia Ismaili Muslims but a force of transformation whose impact reached far beyond his community. His leadership was not defined by titles but by action—by the institutions he built, the millions of lives he uplifted, and the indelible mark he left on global development. From the moment he ascended to the Imamat in 1957, at just 20 years old, the Aga Khan understood that his responsibility went beyond spiritual guidance. He saw faith as a call to action, a driving force for economic empowerment, education, and social progress. What set the Aga Khan apart was not just his ambition, but his humility. In an era of performative leadership, he worked quietly but relentlessly, always choosing substance over spectacle. His vast wealth and influence never overshadowed his deep sense of responsibility. He did not seek to dominate headlines, yet his work reshaped lives on every continent.