Permalink Comment author: Eliezer_Yudkowsky 28 September 2007 04:16:45PM 5 points [+] (2 children) Comment author: Eliezer_Yudkowsky 28 September 2007 04:16:45PM 5 points [-] Wikipedia on a priori : Relations of ideas, according to Hume, are "discoverable by the mere operation of thought, without dependence on what is anywhere existent in the universe".