Answer,Whodarestoteachmustneverceasetolearn。Explanation,ThisfamousquotewassaidbyEnglishphilosopherandstatesman,JohnCotton。Itmeansthatnomatterhowknowledgeableapersonis,heorsheshouldneverforgettoconstantlylearn。Asateacher,onemustbehumbleandkeeplearninginordertoteachbetter。Expansion,Thesameideahasbeenechoedbymodern-daythinkersaswell。Forexample,SethGodinsaid,Thecostofgivingandteachingisn’tjusttimeandenergy。Therealcostistheongoingcommitmenttolearningmorethanwealreadyknow。Thisquotefurtheremphasizestheimportanceofcontinuingtolearn,regardlessofonesprofessionorexperience。