MeditationsMarcus AureliusRead freeBuy on AmazonAppears in 8 ideasNatural PhilosophyNatureWhat is nature, and what is humanity's place within it?Metaphysics/PsychologySoulIs the soul immortal, and what is the relationship between mind and body?Metaphysics/ScienceLife and DeathWhat distinguishes the living from the non-living, and what does death mean for the creature that knows it must die?EthicsDutyWhat binds us to act rightly, and from where does moral obligation arise?HabitIs character formed by repeated action, and can the habits we have built be undone?MetaphysicsFateIs the course of the world, of nations and of a human life, fixed in advance, and if so, by what?ChanceIs chance a real feature of the world, or only a name for our ignorance of causes?WorldWhat is the universe, and how does it stand in relation to God and to man?