The Greatest Losers!

Say: "Shall we tell you of those who lose most in respect of their deeds?- "Those whose efforts have been wasted in this life, while they thought that they were acquiring good by their works?" They are those who deny the Signs of their Lord and the fact of their having to meet Him (in the Hereafter): vain will be their works, nor shall We, on the Day of Judgment, give them any weight.

Al-Quran, 18:103-5.