The duration of a person’s life is only a moment; our substance is flowing away this very moment; the senses are dim; the composition of the body is decaying, the soul is chaos, our fate is unknowable, and reputation uncertain. In a word all bodily things are like a flowing river, and everything of the soul is dream and smoke, and life is all warfare and a stranger’s wanderings, and the reward is oblivion. What then could possibly guide us? Only one thing: Philosophy.