The nation that will insist upon drawing a broad line of distinction between the fighting man and the thinking man is liable to find its fighting done by fools and its thinking by cowards.
-- Sir William Francis Butler
The eighteenth-century Enlightenment marks the beginning of the modern age, when the scientific method and belief in reason and progress came to hold sway over the Western world.
In the twentieth century, however, the Enlightenment has often been judged harshly for its apparently simplistic optimism. Now a master historian goes back to the sources to give a fully rounded account of its true accomplishments.