"These are the people who buy the life of this world at the price of the Hereafter: their penalty shall not be lightened nor shall they be helped."
 

(Holy Qur'an (Yusufali) 2:86)

"The life of this world is alluring to those who reject faith, and they scoff at those who believe. But the righteous will be above them on the Day of Resurrection; for God bestows His abundance without measure on whom He will."
 

(Holy Qur'an (Yusufali) 2:212)

"Such as took their religion to be mere amusement and play, and were deceived by the life of the world. That day shall We forget them as they forgot the meeting of this day of theirs, and as they were wont to reject Our signs."
 

(Holy Qur'an (Yusufali) 7:51)

"And there are men who say: "Our Lord! Give us good in this world and good in the Hereafter, and defend us from the torment of the Fire!""
 

(Holy Qur'an (Yusufali) 2:201)

"How it is that you have forgotten death and always keep unattainable hopes and desires before your mind's eye? The world has taken a possession of your intellect as to exclude every consideration of the hereafter from your thoughts. Its allurements and attractions are so powerful that they have made you forget of the world to come. You are so much enticed by mortal pleasures that the life to come does not find a place in your imagination."
 
"What has come to you? You are happy and pleased with the paltry (trivial) and worthless, though easily obtainable pleasures of this world, and the deprivation of immense and abundant bounties of the Heaven does not grieve you. Loss of world possessions, though however contemptible (disgraceful) and mean they may be, make you so sad that even your faces reflect the depth of your sorrow and height of your grief at your disappointments. As if you and this world are both immortals and as if its wealth and pleasures are everlasting."
 

(Nahjul Balagha: Sermons, letters and saying of Hazrat Ali (Second American edition, 1981), Khutba 116, p. 86)