William P. Lauder, Elizabeth Hurley, Michael Kors and more share their lasting memories and key lessons learned from the legendary cosmetics executive.

Of course, Leonard was brilliant. But he was also kind, honest, courtly and fair, with a powerful faith in other people. He laughed easily, always kept his cool, and he had an absolute genius knack for selecting the perfect person to run with whichever ball he’d set in motion.

He was best known for his success in business, notably the international beauty company he built with his mother, Estée Lauder. He was also an influential art patron.