“Autobiography is usually honest but it is never truthful.”

Source: Boy: Tales of Childhood

Naman Ramachandran, in Rajinikanth: The Definitive Biography (15 January 2014) http://books.google.co.in/books?id=3mzyPGSfwKMC&printsec=frontcover#v=onepage&q&f=false, page before preface.

Basavanna's Preachings

Source: Social Amnesia: A Critique of Conformist Psychology from Adler to Laing (1975), p. 23-25
Context: The Adlerians, in the name of “individual psychology,” take the side of society against the individual. … Adler’s later thought succumbs to the worst of his earlier banalization. It is conventional, practical, and moralistic. “Our science … is based on common sense.” Common sense, the half-truths of a deceitful society, is honored as the honest truths of a frank world.

Introduction
1920s, An Autobiography (1927)

Looking for an Honest Man (2009)
Context: Diogenes … refuses to be taken in by complacent popular belief that we already know human goodness from our daily experience, or by confident professorial claims that we can capture the mystery of our humanity in ­definitions. But mocking or not, and perhaps speaking better than he knew, Diogenes gave elegantly simple expression to the humanist quest for self-knowledge: I seek the human being — my human being, your human being, our humanity. In fact, the embellished version of Diogenes' question comes to the same thing: To seek an honest man is, at once, to seek a human being worthy of the name, an honest-to-goodness exemplar of the idea of humanity, a truthful and truth-speaking embodiment of the animal having the power of articulate speech.

"As I Please," Tribune (8 December 1944)^{http://alexpeak.com/twr/tdoaom/}
"As I Please" (1943–1947)
Context: The important thing is to discover which individuals are honest and which are not, and the usual blanket accusation merely makes this more difficult. The atmosphere of hatred in which controversy is conducted blinds people to considerations of this kind. To admit that an opponent might be both honest and intelligent is felt to be intolerable. It is more immediately satisfying to shout that he is a fool or a scoundrel, or both, than to find out what he is really like. It is this habit of mind, among other things, that has made political prediction in our time so remarkably unsuccessful.