“If someone doesn't value evidence, what evidence are you going to provide to prove that they should value it? If someone doesn’t value logic, what logical argument could you provide to show the importance of logic?”

— Sam Harris

Sam Harris, "Is the Foundation of Morality Natural or Supernatural? – William Lane Craig vs. Sam Harris http://www.reasonablefaith.org/is-the-foundation-of-morality-natural-or-supernatural-the-craig-harris, University of Notre Dame, Notre Dame, Indiana, United States – April 2011 http://www.youtube.com/watch?v=pk7jHJRSzhM&t=1m10s <br class="br">2010s

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Sam Harris151

American author, philosopher and neuroscientist 1967

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"What can be asserted without evidence can also be dismissed without evidence." appears by itself in God Is Not Great: How Religion Poisons Everything (2007).
Translation of the Latin phrase "Quod gratis asseritur, gratis negatur.".
2000s, 2003
Variant: "What can be asserted without proof can be dismissed without proof." in * 2004

“"Racism" is to the current era what "unAmericanism" was to the Fifties: a curse word that provides a handy substitute for logical thought.”

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“Dimensionless constants in the laws of nature, which from the purely logical point of view can just as well have different values, should not exist.”

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German orgiginal: Dimensionslose Konstanten in den Naturgesetzen, die vom rein logischen Standpunkt aus ebensogut andere Werte haben können, dürfte es nicht geben.
As quoted in Begegnungen mit Einstein, von Laue, und Planck (1988) by Ilse Rosenthal-Schneider, p. 31, English edition Reality and Scientific Truth : Discussions with Einstein, von Laue, and Planck (1980) by Ilse Rosenthal-Schneider
Attributed in posthumous publications