“A modern philosopher who has never once suspected himself of being a charlatan must be such a shallow mind that his work is probably not worth reading.”
Source: Metaphysical Horror (1988)
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Leszek Kolakowski 45
Philosopher, historian of ideas 1927–2009Related quotes

“Modern Philosophers, that wisely keep to sandy shallows, like shrimps, for fear of bigger fish.”
Vol. II, Ch. V Aphorisms and Extracts, p. 76.
Memoirs and Correspondence (1900)

Source: The Emergence Of Probability, 1975, Chapter 4, Evidence, p. 31.

Alhazen, quoted in “Muslim Journeys.” Bridging Cultures Bookshelf: Muslim Journeys. N.p., n.d. Web. 01 Nov. 2013. Also in Ibn al-Haytham Brief life of an Arab mathematician: died circa 1040 (September-October 2003) http://harvardmagazine.com/2003/09/ibn-al-haytham-html

Reported as a misattribution in Paul F. Boller, Jr., and John George, They Never Said It: A Book of Fake Quotes, Misquotes, & Misleading Attributions (1989), p. 20-21.
Misattributed

As quoted in "At 90, and Still Dynamic : Revisiting Sir Karl Popper and Attending His Birthday Party" by Eugene Yue-Ching Ho, in Intellectus 23 (Jul-Sep 1992)

Speech to the Brotherhood of Locomotive Firemen in Chattanooga, Tennessee (8 September 2013). http://books.google.de/books?id=7_3uugarOF0C&pg=PA105&lpg=PA105&dq=theodore+roosevelt+I+don't+pity+any+man+who+does+hard+work+worth+doing.+I+admire+him.+I+pity+the+creature+who+does+not+work,+at+whichever+end+of+the+social+scale+he+may+regard+himself+as+being.&source=bl&ots=seVM4pX9IN&sig=gd7yTZMy3X2h6rIgQVVp5uR0Xu4&hl=de&sa=X&ei=M5FZUvW4M8LXtQby1YD4AQ&ved=0CG8Q6AEwCTgK#v=onepage&q=theodore%20roosevelt%20I%20don't%20pity%20any%20man%20who%20does%20hard%20work%20worth%20doing.%20I%20admire%20him.%20I%20pity%20the%20creature%20who%20does%20not%20work%2C%20at%20whichever%20end%20of%20the%20social%20scale%20he%20may%20regard%20himself%20as%20being.&f=false
1900s

Charlie Rose: An Interview with Carl Sagan http://www.charlierose.com/guest/view/4553, May 27, 1996.