It is especially interesting to me how many people regard philosophy as being irrelevant in modern/post-modern times. Apparently science answers all questions. Take morality for example. There have been a number of books out that explain, scientifically, why humans are moral and what evolutionary advantage that gives us as a species. Why we are the only species with such a morality if it has such survival value is usually not explained. What is more interesting is that lack of inquiry into what exactly morality is. After all, it may be true that evolutionary forces intended for us to be moral--for its survival value alone. But that still doesn't answer what morality is. What is the good life? What ought I to do? Why should I be moral in my personal life?
Then there's the question of scientific methodology. How can we justify science? Does it not need justification? Science is a tool we use to gain new knowledge about the physical universe. Science rests upon some very basic principles. How are we to justify them? This is the area of epistemology or theory of knowledge. How do I know scientific knowledge is valid? How do I know my senses are not deceiving me? Can I have non-scientific knowledge? Mathematics seems to be independent of science, why not another subject like philosophy? If one objects and argues that science and the empiricism is rests upon are certain, they need to go back and read Descartes' Mediations On First Philosophy and Hume's Treatise On Human Nature.
There are numerous other issues science cannot fully answer. So is philosophy still relevant? Philosophy is more relevant now then it has ever been. Scientism is a very popular view. Religious fundamentalism is on the rise. We have such destructive power--unprecedented in human history. Ignorance is everywhere. How much more relevant could philosophy be?