Definition of "truth"

The truth depends on, or is only arrived at by, a legitimate deduction from all the facts which are truly material.

1835, Samuel Taylor Coleridge with Henry Nelson Coleridge, quoting Samuel Taylor Coleridge, Specimens of the Table Talk of the late Samuel Taylor Coleridge‎, volume II, page 19

The truth is that [Isaac] Newton was very much a product of his time. The colossus of science was not the first king of reason, Keynes wrote after reading Newton’s unpublished manuscripts. Instead “he was the last of the magicians”.

2014 June 21, “Magician’s brain”, in The Economist‎, volume 411, number 8892, archived from the original on 4 November 2018

As in much of biology, the most satisfying truths in ecology derive from manipulative experimentation. Tinker with nature and quantify how it responds.

2012 January, Robert M. Pringle, “How to Be Manipulative”, in American Scientist, volume 100, number 1, page 31

Alas! they had been friends in youth; / But whispering tongues can poison truth; […]

1800, S[amuel] T[aylor] Coleridge, “Christabel. Part II.”, in Christabel: Kubla Khan, a Vision: The Pains of Sleep, London: […] John Murray, […], by William Bulmer and Co. […], published 1816, page 32

Ploughs, […] to make them go true, […] depends much upon the truth of the ironwork.

1707, J[ohn] Mortimer, The Whole Art of Husbandry; or, The Way of Managing and Improving of Land. […], 2nd edition, London: […] J[ohn] H[umphreys] for H[enry] Mortlock […], and J[onathan] Robinson […], published 1708

The process of grinding is, in fact, regarded as indispensable wherever truth is required, yet that of scraping is calculated to produce a higher degree of truth than has ever been attained by grinding.

1840, Joseph Whitworth, A Paper on Plane Metallic Surfaces or True Planes

"Beauty is truth, truth beauty,"—that is all / Ye know on earth, and all ye need to know.

1819 May, John Keats, “Ode on a Grecian Urn”, in Lamia, Isabella, the Eve of St. Agnes, and Other Poems, London: […] [Thomas Davison] for Taylor and Hessey, […], published 1820, stanza 5, page 116

It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife.

1813 January 27, [Jane Austen], Pride and Prejudice: […], volumes (please specify |volume=I to III), London: […] [George Sidney] for T[homas] Egerton, […]

Had they [the ancients] dreamt this, they would have truthed it heaven.

c. 1636 John Ford, The Fancies Chaste and Noble

A concentrated region of the agricultural test area was intensively ground truthed, not only to identify the crop types, but equally important, also to begin to determine the parameters controlling the radar energy reflected from a crop type at a particular stage of growth.

1974, Proceedings of the International Symposium on Remote Sensing of Environment, page 226

As is shown in this table, APG images in the validation subset were only truthed with box models, and the 29P images in this subset were never truthed at all.

1990, Advanced Infrared Technology - Part 2, page cxxvi

This database, which consisists of nearly 180,000 characters, was manually truthed.

2003, Advances in Pattern Recognition ICAPR2003, page 67

You keep lying, when you oughta be truthin'

1966, Nancy Sinatra, These Boots Are Made for Walkin'