“Atheists are also morally obligated to tell the truth as we see it. We should preach and proselytize too. We need to help believers. Someone who believes in god is wasting big parts of his or her life, holding back science and love, and giving "moral" support to dangerous extremists. If you believe something, you must share it; it's one of the ways we all learn about truth.”
p. 62 http://books.google.com/books?id=OqwtBujvOmgC&pg=PA62&dq=%22atheists+are+also+morally+obligated%22
2010s, God, No!: Signs You May Already Be an Atheist and Other Magical Tales (2011)
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Penn Jillette 49
American magician 1955Related quotes

Speaking as the Director of USIA, in testimony before a Congressional Committee (May 1963) http://pdaa.publicdiplomacy.org/?page_id=6
Context: American traditions and the American ethic require us to be truthful, but the most important reason is that truth is the best propaganda and lies are the worst. To be persuasive we must be believable; to be believable we must be credible; to be credible we must be truthful. It is as simple as that.

Source: 1840s, Works of Love (1847), p. 5

A merely borrowed belief is, at such time, like a rotten plank across a raging torrent. The moment we step upon it, it gives way beneath our feet.
Section 9 : Ethical Outlook
Life and Destiny (1913)

1950s, Rediscovering Lost Values (1954)

2009, A New Beginning (June 2009)
Why Do Religions Teach Love and Yet Cause So Much War?
Context: If you are talking to me about your new car, you are the first person, I am the second person, and the car is the third person.
These pronouns actually represent three perspectives that human beings can take when they talk about the world or attempt to know the world... The fascinating part is that these three perspectives might actually give rise to art, morals, and science. Or the Beautiful, the Good, and the True: the Beauty that is in the eye (or the "I") of the beholder; the Good or moral actions that can exist between you and me as a "we"; and the objective Truth about third-person objects (or "its") that you and I might discover: hence, art ("I"), morals ("we"), and science ("it").
“We know how to tell many believable lies,
But also, when we want to, how to speak the plain truth.”
Theogony, lines 28–29
Translations, Works and Days and Theogony (1993)

Speaking as the Director of USIA, in testimony before a Congressional Committee (May 1963) http://pdaa.publicdiplomacy.org/?page_id=6