In class a long time ago I mentioned the following four popular
philosophical doctrines: (1) naturalism--roughly, that science is
the best or only source of knowledge, so that, if philosophers want
to know something, they should ask science (in the context of the
second part of the course one might want to say, instead:
that science is the only method or type of activity by which one can
aim, rationally and/or with well-founded expectations of success, at
obtaining knowledge, or at discovering something new); (2)
physicalism--roughly, that everything (every object, property,
event, and/or law) is physical (is a physical object, physical
property, physical event, physical law); (3) empiricism--roughly,
that all our knowledge comes from experience; (4) scientific
realism--roughly, the doctrine that the things science says exist
are the things that really exist. Pick at least one of these and
explain what it means (and doesn't mean) for one or more of the
authors we've read.
(A few possible ways to make this interesting: show, for example,
that the disagreement between two authors who disagree is really a
disagreement over the correct interpretation of one of these
doctrines, or that one of them pulls a particular author in more
than one direction (leading to tension or incoherence), or that two
of these doctrines which seem to go together (and/or which do go
together for some of the authors we've read) are really, according
to some (other) author(s), diametrically opposed.)