"This book is an extraordinary integration of a lifetime of thought on the subject by an exceptional scholar. Morowitz logically, consistently, and persuasively moves to define arguments that will influence thought in a fundamental realm of biology." -Donald M. Engelman, Yale University "Morowitz develops a model of the origin of life in which cells originate first, proteins follow, and genes evolve last. This model contradicts conventional wisdom but has the distinct advantage of being testable; and is supported by evidence mustered from biology, biochemistry, and biophysics. Morowitz['s] expertise in all three disciplines is impressive."-Francisco J. Ayala, Dept.

of Ecology and Evol. Biology, University of California, Irvine "In this short and clearly written book, Morowitz explores the origins of life. His objective is elegantly achieved. A stimulating analysis . [and] an excellent read." -A. E. Douglas, Times Higher Education Supplement "[A] book rich in provocative and stimulating ideas.

I recommend it to anyone who has ever thought seriously about the origin of life." -Vincent P. Cirillo, Quarterly Review of Biology.