 The refusal of theory goes hand in hand with Wittgenstein’s objection to have “anything hypothetical in our [philosophical] considerations” (PI 109): “All explanation must disappear, and description alone must take its place.” In The Blue Book, Wittgenstein explained the difficulty encountered by philosophers to work on a minor scale and to take seriously “the particular case” as originating from their “craving for generality.” This craving is strongly influenced by philosophers’ “preoccupation with the method of science,” a reductive and unifying tendency which is “the real source of metaphysics” (BB 18). Wittgenstein’s determined anti-scientism should not be read as an opposition to science in itself; it is the insistence that philosophy and science are to be kept apart – that (contrary to the prevalent attitude of modern civilization) the scientific framework is not appropriate everywhere, and certainly not for philosophical investigations.