Philosophy in both Australia and New Zealand has been has been experiencing, for some time now, something of a 'golden age', exercising an influence in the global arena that is disproportionate to the population of the two countries. To capture the distinctive and internationally recognised contributions Australasian philosophers have made to their discipline, a series of public talks by leading Australasian philosophers was convened at various literary events and festivals across Australia and New Zealand from 2006 to 2009. These engaging and often entertaining talks attracted large audiences, and covered diverse themes ranging from local histories of philosophy (in particular, the fortunes of philosophy in Melbourne, Sydney, Brisbane, Adelaide, and New Zealand); to discussions of specific topics (including love, free will, religion, ecology, feminism, and civilisation), especially as these have featured in the Australasian philosophy; and to examinations of the intellectual state of universities in Australasia at the beginning of the twenty-first century. These talks are now collected here for the first time, to provide not only students and scholars, but also the wider community with a deeper appreciation of the philosophical heritage of Australia and New Zealand.

If asked what Humeanism could mean today, there is no other philosopher to turn to whose work covers such a wide range of topics from a unified Humean perspective as that of David Lewis. The core of Lewis's many contributions to philosophy, including his work in philosophical ontology, intensional logic and semantics, probability and decision theory, topics within philosophy of science as well as a distinguished philosophy of mind, can be understood as the development of philosophical position that is centered around his conception of Humean supervenience. If we accept the thesis that it is physical science and not philosophical reasoning that will eventually arrive at the basic constituents of all matter pertaining to our world, then Humean supervenience is the assumption that all truths about our world will supervene on the class of physical truths in the following sense: There are no truths in any compartment of our world that cannot be accounted for in terms of differences and similarities among those properties and external space-time relations that are fundamental to our world according to physical science.