This book publishes the English translation of texts that appeared first in Gennan in two separate booklets. Part One, The Ethics of Capitalism includ­ ing the comment by JAMES M. BUCHANAN, has been published in Gennan under the title Ethik des Kapitalismus, Ttibingen (J.C.B. Mohr [paul Sie­ beck)) 1982, 5th edition 1995, in the series "Walter Eucken Institut, Vort:rt1ge und Aufsatze", vol. 87. Part Two, Evolution and Society. A Critique of So­ ciobiology, appeared first in German under the title Evolution und Gesell­ schaft. Eine Auseinandersetzung mit der Soziobiologie, Ttibingen (J.e. B. Mohr [Paul Siebeck)) 1984, 2nd edition 1989, in the same series, vol. 98. Part One of the book has