Faith always presented to the mind the idea of an abnormal intellectual condition, of the subversion or suspension of the critical faculties. It sometimes comprised more than this, but it always included this. It was the opposite of doubt and of the spirit of doubt. What irreverent men called credulity, reverent men called faith; and although one word was more respectful than the other, yet the two words were with most men strictly synonymous.

History of the Rise and Influence of the Spirit of Rationalism in Europe (ed. 1866)