Worship Allah as if you see Him

قال ابو الدرداء: اعبد الله كأنك تراه ، وعد نفسك في الموتى ، وإياك ودعوة المظلوم ، واعلم أن قليلا يغنيك خير من كثير يهليك ، وان البر لا يبلى وأن الإثم لا ينسى

Abu Darda رضي الله تعالى عنه said:

Worship Allah as if you see Him; and consider yourself among the dead; and beware of the supplication of the one who is wronged, and know that the little that is just sufficient is much better than abundance which distracts you [from Allah], and that pious works never wear off while sin is never forgotten