-yield[get]twicetheresultwithhalftheeffort;Bydoinghalfthework,onewillgetdoubletheresult.;gettwofoldresultswithhalftheeffort;halftheworkwithdoubleresults:
Everythingmustbecarefullyexaminedbeforeweact,thentwiceasmuchcanbeaccomplishedwithhalftheeffort.事情要考虑周详以后再动手，才能够事半功倍。