简介：Manywomentodayhavethefreedomtodecidewhentheywillhavechildren,iftheywantthem.Untilaboutfiftyyearsago,womenspentmostoftheiradultliveshavingchildren,yearafteryear.ThischangedbecauseofeffortsbyactivistslikeMargaretSanger.Shebelievedthatasafeandsuremethodofpreventingpregnancywasanecessaryconditionforwomen'sfreedom.Shealsobelievedbirthcontrolwasnecessaryforhumanprogress.

简介：Sinceancienttimes,asoneofthesymbolsofuglyanddirty,prostitutesareinvariablylivingintheblackmarginsofsociety.Facingprostitutes’miseries,peoplealwayscannotunderstandtheiremotions,mentalitiesanddesires,ortreatsthemasequals,particularlyaswomen.ProstitutesareaspecialgroupintheoppressedwomeninWesternsocieties.MargaretandNanaaretwotypicalimagesoftheminthehistoryofwesternliterature.Withtearsandlives,theydeducetheirmiserablelifestoriessimilarly.