The creativeness in Bourdieu\'s practice sociology theory in the production of knowledge is as follow: He advocates to take the total social facts as the research object;he emphasizes relationism in thinking;he develops such important concept tools as habitus,field,and capital;he emphasizes appropriation in method and reflectiveness as the key ethics in knowledge production.

Starting from the perspective of societal pragmatics and based on lots of examples,this paper has done research into economy principle in English and Chinese advertising language from such aspects as brevity,rhetoric and celebrity effect.

Societal Pragmatics, which studies the social settings of language use, regards language as a social phenomenon.

As an applied sociology, which focuses on the laws of social traffic behavior, social traffic phenomenon, welloperation of the traffic industry and the harmonious development of the whole traffic system and the society in common,traffic sociology comes into being following the trend of social change, specially, evolution of traffic and progress of sociology.