C)Extremelynecessary.D)Positiveandnegative.30.Whatwilltheauthorprobablydiscussintheparagraphfollowingthispassage?A)Theruraldiversionsenjoyedbybothurbanandruralpeople.B)Leisureactivitiesofcitydwellers.C)Buildingmethodsoftheearlysettlersinruralareas.D)Changesinlifestylesofsettlersastheymovedtothecities.Passage7Forme,scientificknowledgeisdividedintomathematicalsciences,naturalsciencesorsciencesdealingwiththenaturalworld,andsciencesdealingwithmankind.Apartfromthesesciencesisphilosophy,aboutwhichwewilltalklater.Inthefirstplace,allthisispureortheoreticalknowledgethatisintrinsicandconsubstautialtoman.Whatdistinguishesmanfromanimalisthatheknowsandneedstoknow.Ifmandidnotknowthattheworldexisted,andthattheworldwasofacertainkind,thathewasintheworldandthathehimselfwasofacertainkind,hewouldn’tbeaman.Thetechnicalaspectsorapplicationsofknowledgeareequallynecessaryformanandareofthegreatestimportance,becausetheyalsocontributetodefininghimasmanandpermithimtopursuealifeincreasinglymoretrulyhuman.Butevenwhileenjoyingtheresultsoftechnicalprogress,hemustdefendtheprimacyandautonomyofpureknowledge.Knowledgesoughtdirectlyforitspracticalapplicationswillhaveimmediateandforeseeablesuccess,butnotthekindofimportantresultwhoserevolutionaryscopeisinlargepartunforeseen,exceptbytheimaginationoftheUtopians.LetmerecallaweNcausethehumanspiritcannotresignitselftoignorance.But,inaddition,thefoundationforpracticalresultswouldnothavebeenreachedifthisknowledgehadnotbeensoughtdisinterestedly.
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