There are few more important philosophers at work today than John Searle, a creative and contentious thinker who has shaped the way we think about mind and language. Now he offers a profound understanding of how we create a social reality--a reality of money, property, governments, marriages, stock markets and cocktail parties.

The paradox he addresses in Making the Social World is that these facts only exist because we think they exist and yet they have an objective existence. Continuing a line of investigation begun in his earlier book The Construction of Social...