The aim of this text is to show the cognitive function of the art later referred to as conceptual. Conceptualism was particularly predisposed to express abstract messages which included philosophical ones. The basic question I would like to pose in this text is: can a conceptual art toolbox express in its own way that which had been formerly expressed by philosophy? How, with the usage of means suggested by conceptual art, may one build a general image of the world – comparable to that which philosophy had previously given? Perhaps a full answer to the above question leads us into the areas of art which ceased to fill the boundaries of conceptualism, or post-conceptualism and heads straightforward to action, which Grotowski called an ‘active culture’ — that is a place where art is not sufficient anymore.