Moshe Safdie is the founding principal and lead designer of the firm Safdie Architects. During a career spanning more than 60 years, he has designed such projects as the Habitat 67 model community in Montreal, Jewel Changi Airport in Singapore, and the Marina Bay Sands resort, also in Singapore. He is the author of nine books. This essay is adapted from his forthcoming memoir, If Walls Could Speak: My Life in Architecture.