PERSEVERANCE/PERSISTENCE

"When I have finally decided that a result is worth getting, I go ahead on it and make trail after trial until it comes."

Thomas Edison

"Perseverance is more Prevailing than violence and many things which cannot be overcome when they are together yield themselves up when taken little by little." -- Plutarch

"Courage and perseverance have a magical talisman, before which difficulties disappear and obstacles vanish into air."

John Quincy Adams

"The last dejected effort often becomes the winning stroke."

W.J. Cameron