Are human truths as immutable and constant as the law of Newton or are human phenomena subjective in interpretation, varying therefore according to the biases of differing viewpoints. It is possible, concludes D’Souza, in this wide ranging work, to find objectivity in the analysis of human matters and thus freedom from the vagaries of interpretation, in the survival impulse. This impulse, primitive and almost biological in its origin, serves as a most satisfactory explanation of all human phenomena.