“In the application of the ordinary principles of geometry and trigonometry to such Astronomical measures… it may sometimes be expedient to resolve the process into several successive steps, and these steps may perhaps require different kinds of treatment. But… all are simple and within ordinary comprehension, and the only complexity arises from the circumstance that the student may find it necessary to have a clear view of several such steps at once…”
Introduction
Popular Astronomy: A Series of Lectures Delivered at Ipswich (1868)
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George Biddell Airy 13
English mathematician and astronomer 1801–1892Related quotes
Donald Judd (1965) in Artforum interview, as quoted in: Richard Shiff (2012) Doubt,
1960s

In re De Nicols. De Nicols v. Curlieb (1898), L. R. 1 C. D. [1898], p. 410.

“It is necessary sometimes to take one step backward to take two steps forward.”

Source: Initiation, The Perfecting of Man (1923)

Introduction
Popular Astronomy: A Series of Lectures Delivered at Ipswich (1868)

Dissenting, Osborn v. United States, 385 U.S. 323, 343 (1966)
Judicial opinions