This was written by Baba Ahmad while in prison. You can read more about him here.
“Life is a book with many chapters. Some tell of tragedy, others tell of triumph. Some are dull and ordinary, others intense and exciting. The key to success in life is to never stop on a difficult page, never to quit on a tough chapter. Champions have the courage to keep turning the pages because they know that a better chapter always lies ahead, because with Allah all things are possible.”