ItistheunintelligentMe，stupidasanidiot，thathastotryathingathousandtimesbeforehecandoit，andthenneverknowshowhedoesit，thatatlastdoesitwell。Wehavetoeducateourselvesthroughthepretentiousclaimsofintellect，intothehumbleaccuracyofinstinct，andweendatlastbyacquiringthedexterity，theperfection，thecertainty，whichthosemastersofarts，thebeeandthespider，inheritfromNature。
Book-knowledge，lecture-knowledge，examination-knowledge，areallinthebrain。Butwork-knowledgeisnotonlyinthebrain，itisinthesenses，inthemuscles，inthegangliaofthesympatheticnerves，——
allovertheman，asonemaysay，asinstinctseemsdiffusedthrougheverypartofthoseloweranimalsthathavenosuchdistinctorganasabrain。Seeaskilfulsurgeonhandleabrokenlimb；seeawiseoldphysiciansmileawayacasethatlookstoanoviceasifthesextonwouldsoonbesentfor；markwhatalargeexperiencehasdoneforthosewhowerefittedtoprofitbyit，andyouwillfeelconvincedthat，muchasyouknow，somethingisstillleftforyoutolearn。
MayIventuretocontrastyouthandexperienceinmedicalpractice，somethinginthewaythemanpaintedthelion，thatis，thelionunder？
Theyoungmanknowstherules，buttheoldmanknows-theexceptions。