“The introduction of religious passion into politics is the end of honest politics”

Baron Quintin Hogg Hailsham of St Marylebone (1907-2001) wrote in The Conservative Case (1959):
 
“The introduction of religious passion into politics is the end of honest politics, and the introduction of politics into religion is the prostitution of true religion.”
 
The quotation has been used to assert that religion and politics don’t mix very well.
 
   
Wikipedia: Quintin Hogg, Baro Hailsham of St. Marylebone
Quintin McGarel Hogg, Baron Hailsham of St Marylebone, KG, CH, PC, QC, FRS (9 October 1907 – 12 October 2001), formerly 2nd Viscount Hailsham (1950–1963), was a British politician who was known for the length of his career, the vigour with which he campaigned for the Conservative Party, and the influence of his political writing. He was considered for the leadership of his party (which would have led to his becoming Prime Minister) in 1963, and served for more than a decade in the office formerly held by his father, that of Lord Chancellor.
 
Google Books
The Conservative Case
By Baron Quintin Hogg Hailsham of St Marylebone
Harmondsworth: Penguin Books
1959
Pg. 19:
The introduction of religious passion into politics is the end of honest politics, and the introduction of politics into religion is the prostitution of true religion.
 
17 August 1997, The Jerusalem Post, “Mixing politics and religion” by David Newman, pg. 6:
It was the late British Lord Hailsham who is reputed to have stated: “The introduction of religion to politics is the end of honest politics, while the introduction of politics to religion is the prostitution of religion.”
     
OpEdNews 
2/5/2007 at 01:43:56
Our Constitution Works!
By Ron McBride
(...)
The introduction of religious passion into politics is the end of honest politics, and the introduction of politics into religion is the prostitution of true religion. - Douglas Hogg
   
Google Books
Selling Sex with Sarah Palin
By Thomas Chi
Published by Author
2009
Pg. 26:
The introduction of religious passion into politics is the end of honest politics, and the introduction of politics into religion is the prostitution of true religion.
Lord Hailsham
 
The Jerusalem Post
Borderline views: The shame of the elections for chief rabbi
By DAVID NEWMAN
07/08/2013 23:18
(...)
Since the coming to power of the new government, the religious parties have made deals with each other, then gone behind each others’ backs only to make new deals, changed their minds, introduced new candidates, attempted to influence the political composition of the election council and, if nothing else, have once again proved the old saying of British Lord Hailsham: “The introduction of religion to politics is the end of honest politics, while the introduction of politics to religion is the prostitution of religion.”