 However, Feyerabend sometimes also recognised that this is to present science as too much of a monolith. In most of his work after Against Method, he emphasises what has come to be known as the “disunity of science”. Science, he insists, is a collage, not a system or a unified project. Not only does it include plenty of components derived from distinctly “non-scientific” disciplines, but these components are often vital parts of the “progress” science has made (using whatever criterion of progress you prefer). Science is a collection of theories, practices, research traditions and world-views whose range of application is not well-determined and whose merits vary to a great extent. All this can be summed up in his slogan: “Science is not one thing, it is many.”