How do you know you're not wrong? -- Whatever works for you -- Naturalism is a simpler explanation than theism -- Unless you can scientifically verify or falsify your belief, it's meaningless -- You can't prove that scientifically -- The soul is nothing more than the brain -- Why think immaterial things like souls exist? -- How can an immaterial soul influence a material body? -- You're a speciesist if you think humans are superior to nonhuman animals -- Animals have rights just like humans do -- How could God command Abraham to sacrifice Isaac?