 After mathematics comes physics. We have only a few Farabian texts dealing with physics taken in the broadest sense and covering the whole of natural philosophy. Paul Lettinck addresses some of al-Fârâbî’s views on physics in his Aristotle’s Physics and its Reception in the Arabic World (1994) and Janos (2012) also does so. Marwan Rashed (2008) attempted a reconstruction of a lost treatise on changing beings.