“There is no science without fancy and no art without fact.”

Source: Consilience: The Unity of Knowledge

Summa Logicae (c. 1323), Prefatory Letter, as translated by Paul Vincent Spade (1995) http://www.pvspade.com/Logic/docs/ockham.pdf
Context: Logic is the most useful tool of all the arts. Without it no science can be fully known. It is not worn out by repeated use, after the manner of material tools, but rather admits of continual growth through the diligent exercise of any other science. For just as a mechanic who lacks a complete knowledge of his tool gains a fuller [knowledge] by using it, so one who is educated in the firm principles of logic, while he painstakingly devotes his labor to the other sciences, acquires at the same time a greater skill at this art.

Source: Attributed in posthumous publications, Einstein and the Poet (1983), p. 94
Context: Religion and science go together. As I've said before, science without religion is lame and religion without science is blind. They are interdependent and have a common goal—the search for truth. Hence it is absurd for religion to proscribe Galileo or Darwin or other scientists. And it is equally absurd when scientists say that there is no God. The real scientist has faith, which does not mean that he must subscribe to a creed. Without religion there is no charity. The soul given to each of us is moved by the same living spirit that moves the universe.

Attributed to Kenneth Boulding in: Association of American Colleges (1955) Liberal education. Vol. 41, p. 430
1950s

From a speech given at the Royal Academy of Art in 1953; quoted in Time magazine (11 May 1954).
Post-war years (1945–1955)

A list closing an article in Young India (22 October 1925); Collected Works of Mahatma Gandhi Vol. 33 (PDF) p. 135 http://www.gandhiserve.org/cwmg/VOL033.PDF
A written list given to his departing grandson Arun Gandhi (October 1947), as quoted in Marriot (Spring 1998; p.5) http://marriottschool.uberflip.com/h/i/16655510-spring-1998-exchange. Some alternative or erroneous translations exist that use intros "There are seven sins in the world:", "Seven Blunders of the world:", "The things that will destroy us are", and items "politics without principle", "education without character", or "business without morality".
The list was originally written by a Socialist clergyman in England in March 1925 and was passed along to Gandhi, who published it later that year, as detailed in this article http://quezi.com/21020.
1920s
Variant: The seven blunders that human society commits and cause all the violence: wealth without work, pleasure without conscience, knowledge without character, commerce without morality, science without humanity, worship without sacrifice, and politics without principles.

Lecture III
Lectures on Art (1870)

Said in 1914 during an exhibit at Allen Chapel in Indianapolis; cited in William Edward Taylor, Harriet Garcia Warkel and Margaret Taylor Burroughs, A Shared Heritage, Indianapolis Museum of Art
Cf. John Ruskin: "Life without industry is guilt, and industry without art is brutality," from Lectures on Art (1870), lecture III