Example image of eyePlorer eyePlorer map for 'Suffering': Affect (psychology) Sentience Pain Psychological pain Hedonism Ataraxia Epicurus Apathy Stoicism Jeremy Bentham Utilitarianism Felicific calculus John Stuart Mill The Open Society and Its Enemies David Pearce Richard D. Ryder Animal Liberation (book) Peter Singer Humane society Humanitarian aid Humanitarianism Pessimism Arthur Schopenhauer Friedrich Nietzsche Will to power Pain (philosophy) Asceticism Compassion Damnation Hell Mortification of the flesh Penance Salvation Problem of evil Theodicy Problem of Hell Dukkha Four Noble Truths Noble Eightfold Path Karuṇā Nirvana Karma in Hinduism Moksha Ahimsa Book of Job Redemptive suffering Encyclopedia of World Problems and Human Potential Union of International Associations Ralph Siu Genuine progress indicator