"Patience and perseverance have a magical effect before which difficulties disappear and obstacles vanish."
— John Quincy Adams
"Perseverance is failing 19 times and succeeding the 20th."
— Julie Andrews
"Never, never, never give in!"
— Winston S. Churchill
"It always seems impossible until it's done."
— Nelson Mandela
"Many of life's failures are people who did not realize how close they were success when they gave up."
— Thomas A. Edison