A New Psychology of Love, Traditional Values and Spiritual Growth
by M. Scott Peck M.D. [more]
Preface: I read this for the first time when it was first published in 1978 and I've never tired of its wisdom and truth. In my view, you can argue with the spiritual concepts of the book but not with its fundamental skills for living a fulfilling and happy life.
A favorite quote:
"Life is difficult..., once we truly see this truth, we transcend it. Once it is accepted, the fact that life is difficult no longer matters."
http://www.amazon.com/Road-Less-Traveled