"He wants to take the notion of social agreement on certain moral principles that will seem to be reasonable and extend it to a general and more comprehensive moral view." Rawis explained, referring to Scanlon's most recent articles.

The Harvard scholar added that while Scanlon's work is related in a broad sense to his own, it is much more general and the two disagree on certain issues.

Scanlon said, "I've always been very interested and influenced by what Raw is has done."

"He used a certain very original reformulation of the idea of social contract as the basis on answering certain questions about political institutions," he added.

Scanlon explained that while Rawls had used the concept of original contract to understand the "legitimacy of social institutions," he himself uses it "to examine the question of what are the requirements of individual morality."

Scanlon said that at Princeton he has been teaching a large introductory course on moral philosophy, as well as a seminar on free will