The thing I fear for you most is following desires and having extensive hopes (about this worldly life). Following one’s desires blocks you from the truth, and having extensive hopes makes you forget the hereafter. Verily, this worldly life is departing and the hereafter is approaching and each of them has its children. So be children of the hereafter, not children of this world, for today there are (opportunities to do) deeds and there is no reckoning, but tomorrow there will be reckoning and no deeds.
- Ali Ibn Abu Talib (via islam2011)