“Every cause produces more than one effect.”
Herbert Spencer (1820–1903) English philosopher, biologist, sociologist, and prominent classical liberal political theorist
On Progress: Its Law and Cause
Essays on Education (1861)
Original: (de) Im übrigen gilt ja hier derjenige, der auf den Schmutz hinweist, für viel gefährlicher als der, der den Schmutz macht.
Letter to Herbert Ihering, August 10. 1922
“Every cause produces more than one effect.”
Herbert Spencer (1820–1903) English philosopher, biologist, sociologist, and prominent classical liberal political theorist
On Progress: Its Law and Cause
Essays on Education (1861)
“There is more to be gained by producing more opportunities than by optimizing existing ones.”
Kevin Kelly (1952) American author and editor
Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995), New Rules for the New Economy: 10 Radical Strategies for a Connected World (1999)
Pablo Picasso (1881–1973) Spanish painter, sculptor, printmaker, ceramicist, and stage designer
Quoted in: The Artist, Vol. 93 (1978) p. 5.
1970s
“The one thing that is more dangerous than true ignorance is the illusion of understanding.”
A. C. Grayling (1949) English philosopher
Source: Life, Sex, and Ideas: The Good Life Without God (2002), Chapter 57, “Becoming Philosophical” (p. 226)
Napoleon I of France (1769–1821) French general, First Consul and later Emperor of the French
Napoleon : In His Own Words (1916)
“Nothing is more dangerous than an idea, when you have only one idea.”
Alain (1868–1951) French philosopher
Propos sur le Religion no. 74 (1938), under the pen name Alain. <br class="br">Alternate translation: “Nothing is more dangerous than an idea, when it's the only one we have.” IZQuotes https://izquotes.com/quote/%C3%A9mile-chartier/nothing-is-more-dangerous-than-an-idea-when-you-have-only-one-idea-390165 (retrieved 10/30/18).
Richard Stallman (1953) American software freedom activist, short story writer and computer programmer, founder of the GNU project
"How to fight software patents - singly and together", Newsforge (9 September 2004)
2000s