Authors:

A man must have a good deal of vanity who believes, and a good deal of boldness who affirms, that all the doctrines he holds are true, and all he rejects are false.

Benjamin Franklin, Walter Isaacson (2003). “A Benjamin Franklin Reader”, p.119, Simon and Schuster
A man must have a good deal of vanity who believes, and a good deal of boldness who affirms, that all the doctrines he holds are true, and all he rejects are false.