Ecclesiastes 3:20-22 World English Bible (WEB)
20 All go to one place. All are from the dust, and all turn to dust again. 21 Who knows the spirit of man, whether it goes upward, and the spirit of the animal, whether it goes downward to the earth?”
22 Therefore I saw that there is nothing better, than that a man should rejoice in his works; for that is his portion: for who can bring him to see what will be after him?