there are known knowns;there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we don't know. but there are also unknown unknowns - there are things we do not know we don't know. 
at 1397662844000
- CliveRichards, ACHunter, nini83, dalmina, jackass, swatchUSA, 2schaa, Ms_Ntlebi, zefrances, marielaroldan and 2 others like this
