thE Author is primArily ConCErnED with urging thE rEADEr to ______.
A．look to thE FuturE For EnlightEnmEnt
B．ApprAisE thE prEsEnt For its truE vAluE
C．honor thE wisDom oF thE pAst AgEs
D．spEnD morE timE in lEisurE ACtivitiEs