“The truth about the world about us.' 'Truth' is a word used in many different ways - 'You’re not telling the truth.' 'The truth about conditions in Russia.' 'Beauty is truth, truth beauty.' I want to use it here in the sense of what lies behind and outward show. I. et me hasten to explain by giving an example. The sun rises in the east and sets in the west. That is what we see; that is the ‘outward show'. In the past the outward show was regarded as the truth. But then a scientist came along to question it and then to announce that the truth was quite different from the appearance: the truth was that the earth revolved and the sun remained still -the outward show was telling a lie. The curious thing about scientific truths like this is that they often seem so useless. It makes no difference to the average man whether the sun moves or the earth moves. He still has to rise at dawn and stop work at dusk. But because a thing is useless it does not mean that it is valueless. Scientists still think it worthwhile to pursue truth. They do not expect that laws of gravitation and relativity are going to make much difference to everyday life, but they think it is a valuable activity to ask their eternal questions about the universe. And so we say that truth - the thing they are looking for—is a value.”

As quoted in "A close encounter with Chris Carter" at Salon (28 April 2000) http://www.salon.com/2000/04/28/chriscarter/
Context: The most difficult thing to reconcile is science and religion … And so we created a 
dilemma for her character that plays right into Mulder’s hands. So that cross she wears,
 which was there from the pilot episode, is all-important for a character who is torn 
between her rational character and her spiritual side. That is, I think, a very smart
 thing to do. The show is basically a religious show. It’s about the search for God. You 
know, "The truth is out there." That’s what it’s about.

The Human Stain (2000)
Context: There is truth and then again there is truth. For all that the world is full of people who go around believing they've got you or your neighbor figured out, there really is no bottom to what is not known. The truth about us is endless. As are the lies.

Source: The Sirens of Titan (1959), Chapter 1 “Between Timid and Timbuktu” (p. 7)

From About Us (30 September 1960)

Concerning right-wing radio shortly before the 2004 U.S. Presidential Election, in NOW (17 December 2004) http://www.pbs.org/now/transcript/transcript351_full.html
Context: On the eve of the election last month my wife Judith and I were driving home late in the afternoon and turned on the radio for the traffic and weather. What we instantly got was a freak show of political pornography: lies, distortions, and half-truths — half-truths being perhaps the blackest of all lies. They paraded before us as informed opinion.

The Doctrine and Discipline of Divorce (1643), Introduction. Compare: "The sun, which passeth through pollutions and itself remains as pure as before", Francis Bacon, Advancement of Learning, Book ii (1605)

"The Book of the Grotesque"
Winesburg, Ohio (1919)

Source: 1920s, "Picasso Speaks" (1923), p. 315.