“Not believing others implies that you yourself are deceitful. The liar suffers twice: he neither believes nor is believed.”
Quanto que el no creer es indicio del mentir; porque el mentiroso tiene dos males, que ni cree ni es creído.
Maxim 154 (p. 87)
The Art of Worldly Wisdom (1647)
Original
Quanto que el no creer es indicio del mentir; porque el mentiroso tiene dos males, que ni cree ni es creído.
The Art of Worldly Wisdom (1647)
Help us to complete the source, original and additional information
Baltasar Gracián 31
Spanish Jesuit and baroque prose writer and philosopher 1601–1658Related quotes

Biharul Anwar, Vol. 45, P. 51
General Quotes

Referring to Mr. Burns. Compare to Heart of Darkness' manager: "He was becoming confidential now, but I fancy my unresponsive attitude must have exasperated him at last, for he judged it necessary to inform me he feared neither God nor devil, let alone any mere man. I said I could see that very well..."
The Shadow Line (1915)
“If you don't believe in yourself, then who will believe in you?”
Attributed to Korda in The Power of Choice (2007) by Joyce Guccione, p. 52, the earliest occurrence of such phrasing yet located is by Martin Lawrence, in "What Up?" in Upscale : The Successful Black Magazine (February 1993), p. 79: "If you don't believe in yourself, then who will believe in you? The next man's way of getting there might not necessarily work for me, so I have to create my own ways of getting there."
Disputed
Lerner's summary of his life for "Who's Who in America," quoted in Max Lerner, Writer, 89, Is Dead; Humanist on Political Barricades By Richard Severo, The New York Times, https://www.nytimes.com/1992/06/06/arts/max-lerner-writer-89-is-dead-humanist-on-political-barricades.html (6 June 1992)

“You cannot believe in God until you believe in yourself.”
Pearls of Wisdom
“I believe in neither a director’s nor a writer’s theatre, but a theatre of intelligent audiences.”
Letter to George Devine (10 March 1964), printed in Kenneth Tynan : A Life by Dominic Shellard<!-- Yale University Press, 2003, --> , p. 292
Context: I believe in neither a director’s nor a writer’s theatre, but a theatre of intelligent audiences. I count myself as a member of an intelligent audience, and I wrote to you as such. That you should disagree with me I can understand, but that you should resent my expressing my opinions is something that frankly amazes me. I thought we had outgrown the idea of theatre as a mystic rite born of secret communion between author, director, actors and an empty auditorium.

“Neither conservatives nor humorists believe man is good. But left-wingers do.”
Republican Party Reptile (1987)