Abstract: In his critique of Western liberalist notion of self, Henry Rosemont takes a deliberate one-sided approach, one that uses language performatively in a given particular spatiotemporal context. This method of doing philosophy is common among those who take philosophy as a way of life. French philosopher Sartre, for instance, has displayed a one-sidedness in his view about self in an opposite direction from Rosemont's. Their practices suggest a gongfu perspective, with which we evaluate philosophical ideas according to their functions in shaping human behaviors with consideration of the context of their uses.

Key words: Henry Rosemont, Sartre, philosophical method, one-sidedness, gongfu perspective