In the fourth chapter, Weston highlights the importance o conducting reliable research. A crucial aspect of this process is being able to procure access to sources which are dependable in terms of providing us with the right information for the subject matter under investigation. This is important for two reasons. In the first place, we cannot assume ourselves to be having complete knowledge about the research problem to which we are seeking an answer. This is also true because, most of things which we might try to research on, in all probability would have also been research upon by others before.