Twenty Lessons Drawn From My Subsurface Hydrology Career

This personal perspective complements a Brief Autobiography I (Figure 1) wrote for the journal Ground Water (Neuman, 2008). Whereas there I described my personal life from early childhood to my career stage at the time, here I focus on key science lessons my academic research, teaching, and professional consulting have taught me. Though many of these lessons have been shared with students and colleagues throughout my career, never have I had the opportunity to collect and summarize them for a wider audience as I do here. I thank the Editors for the opportunity to do so, Professor Emeritus Steve Burgess of the University of Washington and Professor Alberto Guadagnini of the Politecnico di Milano, Italy, for helping me to do so better, and hope readers will find some of these lessons intriguing enough to explore and develop the related ideas further.