“I am not bothered by the fact that I am not understood. I am bothered when I do not know others.”

Bewitched http://www.thepeaches.com/music/composers/rodgershart/Bewitched.htm (1940)

Source: Every Day

Source: The Art of Probability for Scientists and Engineers (1991), p. 298

Louise Bourgeois: a web of emotions, 2010

Dita Amory, in Pierre Bonnard: The Late Still Lifes and Interiors; Yale University Press, New Haven, 2009 - ISBN 978-0-300-14889-3, p. 4
Bonnard started to paint usually on an unstretched canvas

This is part of Lang's campaign in his attempt to discredit the results of The 1977 survey of the American professoriate published in 1979 by Everett C Ladd and Seymour M Lipsett. In 1981 Lang published The File: Case Study in Correction (1977-1979) which consists of copies of correspondence concerning the survey. In this quote from The File Lang sets out why he fought that campaign.

In an interview in the New York Times (16 December 1957), cited in a footnote on page 32 of "Work, Society, and Culture" by Yves Reni Marie Simon, and also in a footnote (in German) on page 360 of "Vita activa oder Vom taetigen Leben" by Hannah Arend (1981)

Variants:

Basic research is when I'm doing what I don't know I'm doing.

Research is what I'm doing when I don't know what I'm doing.

Basic research is what I am doing when I don't know what I am doing.

Speaking with reporters at the annual Dapper Dan banquet on February 4, 1962, as quoted in "CHANGE OF PACE: Clemente Holds His Own as a Speaker'")
Baseball-related, <big><big>1960s</big></big>, <big>1962</big>

Things I Do For You (credited to "The Jacksons")
Destiny (1977)