Kellert, who spent his career examining the relationship between people and nature, delivered this sobering yet hopeful assessment to graduates entering professional and engineering fields. He acknowledged that contact with nature is not a magical elixir that guarantees success, but argued that it remains the foundation upon which all human achievement rests. His research had shown that humanity's physical, mental, and even spiritual health continues to depend on connections to the natural world — from our ability to think and create to our capacity to find meaning and purpose. Kellert warned that a society estranged from nature risks its very sanity, regardless of material comforts. His message challenged graduates to maintain their connection to the natural world even as they entered an increasingly urban and technological society.