Published posthumously, this book is critical to understanding Maslow's concept of metaneeds, metavalues and metamotivations. He clearly outlines the need of self-actualizers to devote themselves to a cause greater than self. No surprise here, but in my judgment, what he would describe in "Religions, Values and Peak Experiences" as perhaps his "most important finding" has yet to be fully appreciated and understood. Dr. Maslow professes that the highest values, being values, or metavalues, are not grandiose platitudes but rather inner realities that are not made up but discovered. Moreover, metavalues are active agents that configure and inspire the motivations of self-actualizing personalities. Much as a contemporary fellow genius, Viktor Frankl, would observe, the True, the Beautiful and the Good are universal realities that are potential in all human beings. This finding flies in the face of Freud and Skinner, who insisted that human nature is virtually completely malleable by environment. Once Abraham Maslow's premise regarding values is entertained, the reader will discover the later sections of the book, especially the "Metamotivation" section, of supreme importance. When we understand and embrace Dr. Maslow's insights into supreme values, we will better understand his pronouncement that humankind has been sold short. Also see Malsow's "The Psychology of Science, a Reconnaissance."