What was the difference between the modern intellectuals and those who were considered intellectuals before them?

Marx is said to be the intellectual who influenced the most people. Why? Explain.

Why is Ibsen credited with changing social attitudes and behavior? How did he do this?

How did American intellectuals differ from European intellectuals?

What does Paul Johnson consider to be the characteristics of an intellectual?

In what ways does Edmund Wilson differ from the other secular intellectuals? Why is this important?

Describe the changes in the intellectual movement that occurred in the post World War II years? How did it differ from secular intellectualism?