Mishnah 1

“Akavia ben Mahalel said: Consider three things and you will not come to sin: Know from where you came, and where you are going, and before Whom you will in the future give justification and reckoning. From where you came? From a foul drop. And where are you going? To a place of dust, worms and maggots. And before Whom will you in the future give an accounting? Before the King of Kings, Hakadosh Baruch Hu.