![Closed // Open — pen and ink drawing by Daniel Ari Friedman. "Prudens quaestio dimidium scientiae." [To ask the proper question is half of knowing] – Roger Bacon (c. 1214 – 1294). "](https://live.staticflickr.com/4438/37190223215_b087c02d79_c.jpg)
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"Prudens quaestio dimidium scientiae." [To ask the proper question is half of knowing] – Roger Bacon (c. 1214 – 1294).
"Facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts do not go away while scientists debate rival theories for explaining them." – Stephen Jay Gould, in 'Evolution as Fact and Theory'.
"Not only are facts and theories in constant disharmony, they are never as neatly separated as everyone makes them out to be." – Paul Feyerabend, 'Against Method' (1975) p. 66
"If you desire ease, forsake learning. If you desire learning, forsake ease. How…
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