grandfather of the Revolution), who recognized only the authority of reason: but reason is only a tool, and Descartes was superficial.

192. Whoever has followed the history of a single science, finds in its development a clue to the understanding of the oldest and commonest processes of all “knowledge and cognizance”: there, as here, the premature hypotheses, the fictions, the good stupid will to “belief,” and the lack of distrust and patience are first developed — our senses learn late, and never learn completely, to be subtle, reliable, and cautious organs of knowledge. Our eyes find it easier on a given occasion to produce a picture already often produced, than to seize upon the divergence and novelty of an impression: the latter requires more force, more “morality.