A 250 Years Old Person is the collection of lectures and writings of the Ali Khamenei. It consists of 17 chapters. It starts with the life of Mohammad and ends with Hasan al-Askari, 11th Imam of Shia. The first three chapters are about the social and political situation of the Islamic Community, from the Day of Ashura to the spiritual leadership of Ja’far al-Sadiq. The main concepts of the book are the lifestyle of Imams and their aims in life. The period of 250 years is applied to the tenth lunar Hijri year (631 CE) until the Minor Occultation (874 CE). According to this book, Mohammad the prophet and the twelve Imams apparently had various methodologies in their lifestyles, but in whole they tried to reach one aim