It is impossible to enslave mentally or socially a Bible-reading people. The principles of the Bible are the groundwork of human freedom.
– Horace Greeley (1811-1872), newspaper editor
Source: Halley’s Bible Handbook, first published by Henry Hampton Halley in 1924 as a 16-page pamphlet, it has been expanded and re-published in many editions over the years. These quotes are taken from Halley’s Bible Handbook with the New International Version—Deluxe Edition, 2007, page 24.
For a longer list of quotes like this, see Historic Quotes About the Bible.