Ali ibn Abi Talib was the cousin and son-in-law of the Islamic prophet Muhammad, ruling over the Islamic Caliphate from 656 to 661. A son of Abu Talib, Ali was also the first young male who accepted Islam. Sunnis consider Ali the fourth and final of the Rashidun (rightly guided Caliphs), while Shias regard Ali as the first Imam after Muhammad, and consider him and his descendants the rightful successors to Muhammad, all of whom are members of the Ahl al-Bayt, the household of Muhammad. This disagreement split the Ummah (Muslim community) into the Sunni and Shi`i branches.
I am amazed at the heart of man: It possesses the substance of wisdom as well as the opposites contrary to it ... for if hope arises in it, it is brought low by covetousness: and if covetousness is aroused in it, greed destroys it. If despair possess...Ali
If what you achieve today is equal to what you achieved yesterday, then you are at a loss. And if what you have achieved today is less than what you achieved yesterday, then you are deprived from the Almighty's blessings. Anyone who is not progressin...Ali