"Amazing! My head is still spinning."
Mike Kearney, President, Spacehab, Inc. (ret.)

"Doris Hamill has hit a home run, right out of the box. With dazzling clarity she charts the source and course of human purpose, making this daunting topic accessible, understandable, and compelling to all readers. Brilliantly insightful while eminently readable, this book belongs on every nightstand. Just in time, as humanity begins to move out into the cosmos, The Challenge of Why traces the grand tapestry of what it all means, and where we fit in."

-Jack Bacon, PhD. P.E.

"Doris Hamill brilliantly reconciles centuries-old dichotomies of philosophy, science and, most importantly, religion. The Challenge of Why is truly a breakthrough work giving us tools to both better understand and answer the most profound questions of existence."

-Dr. Jim Logan, MD.