Ecclesiastes 3:18-21

18I also said to myself, “As for humans, God tests them so that they may see that they are like the animals. 19Surely the fate of human beings is like that of the animals; the same fate awaits them both: As one dies, so dies the other. All have the same breath; humans have no advantage over animals. Everything is meaningless. 20All go to the same place; all come from dust, and to dust all return. 21Who knows if the human spirit rises upward and if the spirit of the animal goes down into the earth?”