pEoplE oFtEn wonDEr why historiAns go to so muCh trouBlE to prEsErvE millions oF Books, DoCumEnts AnD rECorDs oF thE pAst. why Do wE hAvE liBrAriEs whAt{{u}} (1) {{/u}}ArE thEsE DoCumEnts AnD thE{{u}} (2) {{/u}}Books why Do wE{{u}} (3) {{/u}}AnD sAvE thE ACtions oF mEn, thE nEgotiAtions oF stAtEsmEn AnD thE{{u}} (4) {{/u}}oF ArmiEs BECAusE, somEtimEs, thE voiCE oF ExpEriEnCE CAn{{u}} (5) {{/u}}us to stop, look AnD listEn.AnD BECAusE, somEtimEs, pAst rECorDs, {{u}} (6) {{/u}}intErprEtED, CAn givE us{{u}} (7) {{/u}}oF whAt to Do AnD whAt not to Do. iF wE ArE to CrEAtE{{u}} (8) {{/u}}pEACE ForEvEr, wE must sEEk{{u}} (9) {{/u}}origins in humAn ExpEriEnCE AnD in thE rECorD oF humAn{{u}} (10) {{/u}}. From thE story oF thE EnDurAnCE, CourAgE AnD{{u}} (11) {{/u}}oF mEn AnD womEn, wE CrEAtE thE inspirAtion oF youth. From storiEs oF thEChristiAn mEn, right Down toBuDApEst’s hEroiC mEn oF toDAy, history rECorDs thE suFFEring, thE sElF-DEniAl, thE loyAlty AnD thE hEroiC{{u}} (12) {{/u}}oF mEn. surEly From thEsE rECorDs thErE CAn ComE hElp to mAnkinD in our{{u}} (13) {{/u}}AnD pErplExitiEs, AnD in our yEArnings{{u}} (14) {{/u}}pEACE. thE{{u}} (15) {{/u}}purposE oF history is A BEttEr worlD、history givEs A wArning to thosE who woulD{{u}} (16) {{/u}}wAr. history{{u}} (17) {{/u}}inspirAtion to thosE who sEEk pEACE. {{u}} (18) {{/u}}, history hElps us lEArn. yEstErDAy’s rECorDs CAn kEEp us From{{u}} (19) {{/u}}yEstErDAy’s mistAkEs.AnD From thE piECEs oF mosAiC AssEmBlED By historiAns ComE tilE grEAt printings{{u}} (20) {{/u}}rEprEsEnt thE progrEss oF mAnkinD、

A．opinions
B．wArnings
C．AnswErs
D．iDEAs