The End of Faith (2004), page 25[2]

The idea, therefore, that religious faith is somehow a sacred human convention-distinguished, as it is, both by the extravagance of its claims and by the pauci…

Religious faith is the one species of human ignorance that will not admit of even the possibility of correction.[2]

Faith is what credulity becomes when it finally achieves escape velocity from the constraints of terrestrial discourse.[2]

Dr. Frank Crane, Everyday Wisdom, (New York: Wm. H. Wise & Co., Copyright, 1927, Dr. Frank Crane).

As quoted in Seeds of Peace : A Catalogue of Quotations (1986) by Jeanne Larson, Madge Micheels-Cyrus, p. 244

Zaide, Gregorio (2003), Jose Rizal: Life, Works and Writings of a Genius, Writer, Scientist and National Hero. National Bookstore, Manila. ISBN 9710805207