What can be asserted without evidence can also be dismissed without evidence.

Christopher Hitchens (1949-2011) English intellectual, polemicist, socio-political critic

“Mommie Dearest,” Slate (20 Oct 2003)

Sometimes referred to as Hitchens' Razor. The concept is not new (consider the Latin phrase "Quod gratis asseritur, gratis negatur"), but was popularized by Hitchens in discussion of contemporary discussion of religion, including in his work God Is Not Great (2007).

While cited by a number of sources to the 2003 Slate article on the canonization of Mother Teresa, the phrase does not appear in the 2016 reprint of the article at the time she was actually declared a saint.

More information (including the original Slate text): The long history of Hitchens' Razor • Background Probability.