Marius S. Ostrowski is Examination Fellow in Politics at All Souls College, University of Oxford, UK, and Max Weber Fellow at the European University Institute, Florence, Italy. He has written Eduard Bernstein on Social Democracy and International Politics (2018), Eduard Bernstein on the German Revolution (2019), and Left Unity: Manifesto for a Progressive Alliance (2020).

• 1.Introduction.- Part I: Socialism Past and Present: Historical and Contemporary Disputes Within Socialism.- 2. Prologue.- 3. Socialism as a Social-Scientific Theory of Development.- 4. The Natural Rights Justification of Socialism.- 5. The Significance of Theories of Value for Scientific Socialism.- 6. The Nature of Society in Advanced Capitalism.- 7. Socialism and the Theory of Class Struggle.- 8. Theory of the State and Socialism.- 9. Socialism as Democracy and Parliamentarism.- 10.The Bolshevist Perversion of Socialism.- 11. The Nearest Possible Realisations of Socialism.- Part II: Writings on Ideology and Socialist Theory.- 12. The Social Doctrine of Anarchism.- 13. Social Liberalism or Collectivism?.- 14. How is Scientific Socialism Possible?.- 15. What is Socialism?.- 16. The Socialisation of Enterprises: Guiding Principles for a Theory of Socialisation.- Part III: Selected Articles.- 17. A Piece of Materialist Propaganda-Writing.- 18. Right and Justice.- 19. Natural Science Contra Social Science.- 20. Morality and Politics.- 21. Proudhon as a Politician and Publicist.- 22. Two Political Programmatic Symphonies.- 23. Idealism, the Theory of Struggle, and Science.- 24. The Core of the Dispute.- 25. On the German Worker Past and Present.- 26. The Latest Prognosis of Social Revolution.- 27. Parties and Classes.- 28. Socialism and Liberalism in the Prussian Landtag Elections.- 29. On the Value of Parliamentarism.- 30. Class and Class Struggle.- 31. On Class Struggle.- 32. Democracy in Social Democracy.- 33. Class Struggle and Cultural Progress.- 34. The Intellectuals in the Reichstag Elections.- 35. Science, Value-Judgments, and the Party.- 36. What is Socialisation?.- 37. Class Struggle and Coalition Politics.- 38. Limits to the Formal Implementation of Democracy.- 39. Idea and Interest in History.- 40. Who and What are Social Fascists?.

Marius S. Ostrowski is Examination Fellow in Politics at All Souls College, University of Oxford, UK, and Max Weber Fellow at the European University Institute, Florence, Italy. He has written Eduard Bernstein on Social Democracy and International Politics (2018), Eduard Bernstein on the German Revolution (2019), and Left Unity: Manifesto for a Progressive Alliance (2020).

• 1.Introduction.- Part I: Socialism Past and Present: Historical and Contemporary Disputes Within Socialism.- 2. Prologue.- 3. Socialism as a Social-Scientific Theory of Development.- 4. The Natural Rights Justification of Socialism.- 5. The Significance of Theories of Value for Scientific Socialism.- 6. The Nature of Society in Advanced Capitalism.- 7. Socialism and the Theory of Class Struggle.- 8. Theory of the State and Socialism.- 9. Socialism as Democracy and Parliamentarism.- 10.The Bolshevist Perversion of Socialism.- 11. The Nearest Possible Realisations of Socialism.- Part II: Writings on Ideology and Socialist Theory.- 12. The Social Doctrine of Anarchism.- 13. Social Liberalism or Collectivism?.- 14. How is Scientific Socialism Possible?.- 15. What is Socialism?.- 16. The Socialisation of Enterprises: Guiding Principles for a Theory of Socialisation.- Part III: Selected Articles.- 17. A Piece of Materialist Propaganda-Writing.- 18. Right and Justice.- 19. Natural Science Contra Social Science.- 20. Morality and Politics.- 21. Proudhon as a Politician and Publicist.- 22. Two Political Programmatic Symphonies.- 23. Idealism, the Theory of Struggle, and Science.- 24. The Core of the Dispute.- 25. On the German Worker Past and Present.- 26. The Latest Prognosis of Social Revolution.- 27. Parties and Classes.- 28. Socialism and Liberalism in the Prussian Landtag Elections.- 29. On the Value of Parliamentarism.- 30. Class and Class Struggle.- 31. On Class Struggle.- 32. Democracy in Social Democracy.- 33. Class Struggle and Cultural Progress.- 34. The Intellectuals in the Reichstag Elections.- 35. Science, Value-Judgments, and the Party.- 36. What is Socialisation?.- 37. Class Struggle and Coalition Politics.- 38. Limits to the Formal Implementation of Democracy.- 39. Idea and Interest in History.- 40. Who and What are Social Fascists?.

Marius S. Ostrowski is Examination Fellow in Politics at All Souls College, University of Oxford, UK, and Max Weber Fellow at the European University Institute, Florence, Italy. He has written Eduard Bernstein on Social Democracy and International Politics (2018), Eduard Bernstein on the German Revolution (2019), and Left Unity: Manifesto for a Progressive Alliance (2020).

• 1.Introduction.- Part I: Socialism Past and Present: Historical and Contemporary Disputes Within Socialism.- 2. Prologue.- 3. Socialism as a Social-Scientific Theory of Development.- 4. The Natural Rights Justification of Socialism.- 5. The Significance of Theories of Value for Scientific Socialism.- 6. The Nature of Society in Advanced Capitalism.- 7. Socialism and the Theory of Class Struggle.- 8. Theory of the State and Socialism.- 9. Socialism as Democracy and Parliamentarism.- 10.The Bolshevist Perversion of Socialism.- 11. The Nearest Possible Realisations of Socialism.- Part II: Writings on Ideology and Socialist Theory.- 12. The Social Doctrine of Anarchism.- 13. Social Liberalism or Collectivism?.- 14. How is Scientific Socialism Possible?.- 15. What is Socialism?.- 16. The Socialisation of Enterprises: Guiding Principles for a Theory of Socialisation.- Part III: Selected Articles.- 17. A Piece of Materialist Propaganda-Writing.- 18. Right and Justice.- 19. Natural Science Contra Social Science.- 20. Morality and Politics.- 21. Proudhon as a Politician and Publicist.- 22. Two Political Programmatic Symphonies.- 23. Idealism, the Theory of Struggle, and Science.- 24. The Core of the Dispute.- 25. On the German Worker Past and Present.- 26. The Latest Prognosis of Social Revolution.- 27. Parties and Classes.- 28. Socialism and Liberalism in the Prussian Landtag Elections.- 29. On the Value of Parliamentarism.- 30. Class and Class Struggle.- 31. On Class Struggle.- 32. Democracy in Social Democracy.- 33. Class Struggle and Cultural Progress.- 34. The Intellectuals in the Reichstag Elections.- 35. Science, Value-Judgments, and the Party.- 36. What is Socialisation?.- 37. Class Struggle and Coalition Politics.- 38. Limits to the Formal Implementation of Democracy.- 39. Idea and Interest in History.- 40. Who and What are Social Fascists?.