Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a wisdom runs through it

This book, like previous works by Sandra Postel, is a clarion warning call about the dangers in how we have been managing our waters. The message from this book that is of particular importance, is that truly successful, and therefore sustainable, environmental management is really just as much about managing people as it is about managing natural systems. For this reason, I have placed this important book on the reading list for my watershed management course at Harvard. And also, I am grateful that Sandra Postel agreed to write a front-end blurb for my recently published (by Green Frigate Books) book entitled Deep Immersion: The Experience of Water.