berkeley    commonsense realism    descartes    direct realism    entity realism    husserl    idealism    indirect realism    indispensability argument    kant    locke    meinong    meinong's jungle    naive realism    ontological argument    ontological inflation    perception    phenomenal world    phenomenology    philosophy of perception    platonic realism    primary secondary qualities    realism    representational realism    scientific realism    stuctural realism    types of realism