“The fact is that far more crime and child abuse has been committed by zealots in the name of God, Jesus and Mohammed than has ever been committed in the name of Satan. Many people don’t like that statement, but few can argue with it.”

Source: Dynamics of Faith

On being led to her execution, sometimes stated to have been directed at a specific statue of Liberty, in Memoirs, Appendix; reported in Bartlett's Familiar Quotations, 10th ed. (1919), and in Hoyt's New Cyclopedia Of Practical Quotations (1922); used by Thomas Babington Macaulay, Essay on Mirabeau.
Variants:
O liberté, comme on t'a jouée!
O Liberty, how thou hast been played with!
As quoted in Letters Containing a Sketch of the Politics of France (1795) by Helen Maria Williams, Vol. 1, p. 201 http://books.google.de/books?id=FTkuAAAAMAAJ&pg=PA201

Speech to the St. David's Day Banquet in Cardiff (1 March 1927), quoted in Our Inheritance (London: Hodder and Stoughton, 1938), pp. 46-47.
1927
Context: ... that chauvinistic spirit which so often has been the curse of modern Europe. The best way in which you can develop a true national feeling and put your own country in the pride of place which belongs to her is to do it in communion with other nations and with the sole object of improving the world at large. It is not from disillusionment we have suffered since the War; we are taking a more sober view both of ourselves and of the world... Nationalism can take on some very ugly shapes. It looks as if as many crimes will be committed in its name as in the name of Religion or of Liberty. Indeed the source of the trouble is that Nationalists are apt to assume the garments of Religion... Love of one's country has been perverted into hatred of our neighbour's country by the preaching of lop-sided intellectuals, who themselves generally manage to escape the martyrdom they provide for others.

§ IV
1910s, At the Feet of the Master (1911)
Context: Superstition is another mighty evil, and has caused much terrible cruelty. The man who is a slave to it despises others who are wiser, tries to force them to do as he does. Think of the awful slaughter produced by the superstition that animals should be sacrificed, and by the still more cruel superstition that man needs flesh for food. Think of the treatment which superstition has meted out to the depressed classes in our beloved India, and see in that how this evil quality can breed heartless cruelty even among those who know the duty of brotherhood. Many crimes have men committed in the name of the God of Love, moved by this nightmare of superstition; be very careful therefore that no slightest trace of it remains in you.

Heretics and Heresies (1874)

Jacques from Jacques or the Submission (1955)

A Thanksgiving Sermon (1897)
Context: It taught the awful doctrine of witchcraft. It filled the darkness with demons—the air with devils, and the world with grief and shame. It charged men, women and children with being in league with Satan to injure their fellows. Old women were convicted for causing storms at sea—for preventing rain and for bringing frost. Girls were convicted for having changed themselves into wolves, snakes and toads. These witches were burned for causing diseases—for selling their souls and for souring beer. All these things were done with the aid of the Devil who sought to persecute the faithful, the lambs of God. Satan sought in many ways to scandalize the church. He sometimes assumed the appearance of a priest and committed crimes.

The Rise of Atheism, ABC News, 30 September 2007, 1 September 2015 http://abcnews.go.com/GMA/story?id=3671172,
Alternate version: Name me an ethical statement made or an action performed by a believer that could not have been made or performed by a non-believer.
2007-11-01
Excerpt from The Portable Atheist
USA Today
0161-7389
http://www.usatoday.com/life/books/excerpts/2007-11-01-portable-atheist_N.htm
Hitchens posed this challenge many times in debate or during lectures, variously phrased, claiming no one had ever been able to pass it, although everyone could easily answer the corollary question: "Could you name a wicked action or a vile statement made by someone, attributable only to their religious faith?"
Christopher Hitchens Moral Challenge to the god fearing religious folks, YouTube, 20 June 2009, 1 September 2015 https://www.youtube.com/watch?v=XqFwree7Kak,
2000s, 2007

The Deliverance from Error https://www.amazon.com/Al-Ghazalis-Path-Sufism-Deliverance-al-Munqidh/dp/1887752307, p: 34