To maintain nice relation with the people is half of intelligence, nice questioning is half of knowledge, and nice domestic arrangements is half of the management of livelihood.
Ali ibn Abi TalibIf you find that somebody is not grateful for all that you have done for him, then do not get disappointed because often you will find that someone else feels under your obligation though you have done nothing for him and thus your good deeds will be compensated, and Allah will reward you for your goodness.
Ali ibn Abi Talib