It is from this very illusion of imagination, that the foresight of our own dissolution is so terrible to us, and that the idea of those circumstances, which can give us no pain when we are dead, makes us miserable while we are alive. And from thence arises on the most important principles in human nature, the dread of death, the great poison of happiness, but the great restrain upon the injustice of mankind, which while it affects and mortifies the individual, guards and protects the society.