&i;`A fascinating and detailed account of much of Pasteur's life and of French science in the last century'&o; The New York Times Book Review
&i;`Geison makes Pasteur in many ways worthier of our admiration than the saintly figure of legend was. Instead of the dogged experimenter who stumbled repeatedly on the truth either by accident or by routine application of some mechanical procedure, Pasteur emerges as an artist of the microscope inside the laboratory and a talented, at times unscrupulous, advocate outside.'&o;The Economist