In 1906, Jan Lukasiewicz, a great logician, published his classic dissertation on the concept of cause, containing not only a thorough reconstruction of the title concept, but also a systematization of the analytical method. It sparked an extremely inspiring discussion among the other representatives of the Lvov-Warsaw School. The main voices of this discussion are supplemented here with texts of contemporary Polish philosophers. They show how the concept of cause is presently functioning in various disciplines and point to the topicality of Lukasiewicz's method of analysis.