Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Compelling, authoritative, insightful; a must to read.

I read Voices when it first came out. I contacted Lawlor, and subsequently took him to the remote Kimberley region of Western Australia to meet with eminent Ngarinyin Lawman the late David Mowaljarlai and his countrymen. Robert Lawlor has written the most comprehensive, authoritative book on Aboriginal spirituality in life. It is masterful. He encouraged me to write a book on my own knowledge and experience with the Ngarinyin people. This I did. Men's Business Women's Business: The Spiritual Role of Gender in the World's Oldest Culture published by Inner Traditions International (US)was inspired by Voices of the First Day. Unlike many who write about Aboriginal culture and philosophy Robert's diligent attention to authenticity is unsurpassed. This book has my unequivocal recommendation. A modern masterpiece.