“[C]opyright assures authors the right to their original expression, but encourages others to build freely upon the ideas and information conveyed by a work. […] This result is neither unfair nor unfortunate. It is the means by which copyright advances the progress of science and art.”
Feist Publications, Inc. v. Rural Telephone Service Co., 499 U.S. 340 (1991).
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Sandra Day O'Connor 9
Former Associate Justice of the Supreme Court of the United… 1930Related quotes

1980s, GNU Manifesto (1985)

Source: Society of the Spectacle (1967), Ch. 8, sct. 207 (confer Comte de Lautréamont, Poésies II, 1870).

Source: Woman, Church and State (1893), p. 540 as quoted in K. M. Talreja, Holy Vedas and Holy Bible: A Comparative Study https://books.google.com/books?id=9qkoAAAAYAAJ, New Delhi: Rashtriya Chetana Sangathan, 2000

“Logic is neither a science nor an art, but a dodge.”
Letters
'Search for the Real in the Visual Arts', p. 40-46
Search for the Real and Other Essays (1948)

Legitimacy and Force (1988), 130.
Jeane Kirkpatrick talking about a report of the Human Rights Commission in Geneva, which she termed "a letter to Santa Claus." as in A Human Rights Approach to Food and Nutrition Policies and Programmes by Peter L. Pellett http://www.unsystem.org/SCN/archives/scnnews18/ch06.htm, who quotes The Hypocrisy Of It All by Noam Chomsky (1999) http://www.middleeast.org/archives/1999_01_25.htm

Source: Broca's Brain (1979), Chapter 7, “Venus and Dr. Velikovsky” (p. 98)

On the Correct Handling of Contradictions Among the People
Source: (zh-CN) 百花齐放、百家争鸣的方针,是促进艺术发展和科学进步的方针,是促进我国的社会主义文化繁荣的方针。艺术上不同的形式和风格可以自由发展,科学上不同的学派可以自由争论。利用行政力量,强制推行一种风格,一种学派,禁止另一种风格,另一种学派,我们认为会有害于艺术和科学的发展。艺术和科学中的是非问题,应当通过艺术界科学界的自由讨论去解决,通过艺术和科学的实践去解决,而不应当采取简单的方法去解决。

Quote from Richter's letter to Jean-Christophe Ammann, February 1973; as cited on collected quotes on the website of Gerhard Richter: 'on Other subjects' https://www.gerhard-richter.com/en/quotes/other-aspects-6
1970's