“Every dictatorship has ultimately strangled in the web of repression it wove for its people, making mistakes that could not be corrected because criticism was prohibited.”
"Value of Dissent" speech Nashville, Tennessee (21 March 1968)
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Robert F. Kennedy 72
American politician and brother of John F. Kennedy 1925–1968Related quotes

“Art cannot be criticized because every mistake is a new creation. ”

“For in the days we know not of
Did fate begin
Weaving the web of days that wove
Your doom.”
Faustine.
Undated

Directives on the Cultural Revolution (1966-1972)

“If you make a mistake and do not correct it, this is called a mistake.”

On Coalition Government (1945)

Illustrated London News (1924)
Context: The whole modern world has divided itself into Conservatives and Progressives. The business of Progressives is to go on making mistakes. The business of Conservatives is to prevent mistakes from being corrected. Even when the revolutionist might himself repent of his revolution, the traditionalist is already defending it as part of his tradition. Thus we have two great types — the advanced person who rushes us into ruin, and the retrospective person who admires the ruins. He admires them especially by moonlight, not to say moonshine. Each new blunder of the progressive or prig becomes instantly a legend of immemorial antiquity for the snob. This is called the balance, or mutual check, in our Constitution.

… The more selective you are in the feedback you accept, the more insane your reasoning will become as you will necessarily reject corrective feedback that would have led to better reasoning.
Re: Lisp's future http://groups.google.com/group/comp.lang.lisp/msg/ba8f8f34c16d55f3 (Usenet article).
Usenet articles, Miscellaneous

"The Testament of a Furniture Dealer" http://www.ikea.com/ms/en_US/pdf/reports-downloads/the-testament-of-a-furniture-dealer.pdf (1976).