In his book Development of Islamic State and Society, Mazharuddin Siddiqi observes:
"There were too many interests to be reconciled, the Ansar against the Muhajreen; the Hashimite against the Umayyads; the bedouin tribes against the aristocracy of Madina. In a democratic set up which did not provide for a regular constitutional machinery with well defined rights and duties, everything depended on the personal quality of the ruler. Uthman would have succeeded if he had been a dictator either temperamentally or constitutionally, or if there had been an adequate constitutional machinery behind the social democracy of Islam. But it was clearly a dangerous solution to have democratic liberties such as the Arabs had without a strong hand like Umar, or without a full fledged democratic constitution which was inconceivable in an age like that or in a country like Arabia."
"When a person dies, his works end, except for three: ongoing charity, knowledge that is benefited from, and a righteous child who prays for him."
Prophet Mohammed (PBUH)
"The best of what a man leaves behind are three: a righteous child who supplicates for him, ongoing charity the reward of which reaches him, and knowledge that is acted upon after him."
Sunan Ibn Mājah
"Every day two angels come down from Heaven and one of them says, 'O Allah! Compensate every person who spends in Your Cause,' and the other (angel) says, 'O Allah! Destroy every miser.'"
Sahih Bukhari