I came across this quote in a small magazine that was published in December 1957. It’s an old Restoration church mouthpiece called The Plea. The quote goes like this:
There is a principle which is a bar to all information, which is proof against all arguments, and which cannot fail to keep man in everlasting ignorance. This principle is ‘contempt prior to investigation.’ –Herbert Spencer as quoted in The Plea, December 1957, Volume 13, no. 10, p 2.