▁own ▁valid ity ". ▁ ▁" Every thing ▁of ▁importance ▁has ▁been ▁said ▁before ▁by ▁somebody ▁who ▁did ▁not ▁discover ▁it " ▁is ▁an ▁ad age ▁attributed ▁to ▁Alfred ▁North ▁White head . ▁ ▁See ▁also ▁ ▁E pon ym ▁ ▁List ▁of ▁examples ▁of ▁St ig ler ' s ▁law ▁ ▁List ▁of ▁mis named ▁the or ems ▁ ▁List ▁of ▁persons ▁considered ▁father ▁or ▁mother ▁of ▁a ▁scientific ▁field ▁ ▁Matthew ▁effect ▁ ▁Mat ilda ▁effect ▁ ▁O bl iter ation ▁by ▁incorpor ation ▁ ▁Scient ific ▁priority ▁ ▁Stand ing ▁on ▁the ▁shoulders ▁of ▁gi ants ▁ ▁The ories ▁and ▁soci ology ▁of ▁the ▁history ▁of ▁science ▁ ▁References ▁ ▁Further ▁reading ▁▁▁▁ ▁( F est schrift ▁for ▁Robert ▁K . ▁M erton ) ▁ ▁External ▁links ▁▁ ▁on ▁▁▁ ▁St ig ler ' s ▁law ▁is ▁described ▁near ▁the ▁end ▁of ▁the ▁article ▁ ▁Category : So ci ology ▁of ▁scientific ▁knowledge ▁Category : S cient ific ▁method ▁Category : E pon ym s <0x0A> </s> ▁The ▁ 2 0 0 9 ▁U CI ▁Cy clo - cross ▁World ▁Championships ▁took ▁place ▁in ▁Ho og er he ide , ▁Netherlands ▁on ▁the ▁week end ▁of ▁January ▁ 3 1 ▁and ▁February ▁ 1 , ▁ 2 0 0 9 . ▁As ▁in ▁ 2 0 0 8 , ▁four ▁events ▁were ▁scheduled . ▁ ▁Medal ▁table ▁ ▁Medal ▁summary ▁ ▁External ▁links ▁ ▁U CI ▁website ▁▁▁ ▁U ci ▁Cy clo - cross ▁World ▁Championships , ▁ 2 0