Son, all your hopes cannot be realized. You cannot live for a period longer than what has been ordained for you. You have to tread the way, which was trodden by the people before you. Be moderate in your desires. Do not transgress the limits. Do not become a slave of your desires. That good is no good, which leads to evil. That wealth is no wealth, which brings dishonor. Take care that ambition and greed do not lead you to destruction. Do not seek the favor of any one for whatever is ordained for you, you will get it at all cost.
"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