Quote Authors by “O” O. HenryOcean's ElevenOctavia ButlerOdettaOffice SpaceOg MandinoOgden NashOld Folk SayingOlin MillerOlive SchreinerOliver CromwellOliver GoldsmithOliver HerfordOliver IferfordOliver L. NorthOliver ReedOliver Wendell HolmesOmahasOmar KhayymOprah WinfreyOral RobertsOren ArnoldOrientalOrigenOrison Swett MardenOrlando A. BattistaOrnette ColemanOrson Scott CardOrson WellesOscar Hammerstein IIOscar LevantOscar RobertsonOscar W. FirkinsOscar WildeOshoOswald ChambersOtis Lee CrenshawOtto von BismarckOvidOwen Feltham