RACHEL NUWER: The German philosopher Friedrich Wilhelm Nietzsche was, by all accounts, a miserable human being. He famously sought meaning through suffering, which he experienced in ample amounts throughout his life. Nietzsche struggled with depression, suicidal ideation, and hallucinations, and when he was 44 — around the height of his philosophical output — he suffered … Continue reading ‘If Nietzsche Were a Narwhal’: What animal intelligence reveals about human stupidity