“No grand idea was ever born in a conference, but a lot of foolish ideas have died there.”

The Frontiers of Management (1986)
1960s - 1980s

The Artist's Way (1992), p. xxv

Part II Section XII
A Philosophical Enquiry into the Origin of Our Ideas of the Sublime and Beautiful (1757)
Context: When any work seems to have required immense force and labor to affect it, the idea is grand. Stonehenge, neither for disposition nor ornament, has anything admirable; but those huge rude masses of stone, set on end, and piled each on other, turn the mind on the immense force necessary for such a work. Nay, the rudeness of the work increases this cause of grandeur, as it excludes the idea of art and contrivance; for dexterity produces another sort of effect, which is different enough from this.

ibid., chap. 30

CNN Larry King Weekend (2002)

As quoted in The Cynic's Breviary : Maxims and Anecdotes from Nicolas de Chamfort (1902) as translated by William G. Hutchison, p. 37

Sometimes attributed to Ackerman this actually originates with Nicolas Chamfort, as quoted in The Cynic's Breviary : Maxims and Anecdotes from Nicolas de Chamfort (1902) as translated by William G. Hutchison, p. 37
Misattributed

WTF Is…? series, Day One: Garry's Incident (October 1, 2013)

Source: Memory Wire (1987), Chapter 18 (p. 161)