The Problem of Evil (why is there so much suffering in the world given an OmniGod?) is sometimes answered by theists that suffering has to exist so that people have a working knowledge of what bad or evil is in order to know what good is, or indeed that pleasure cannot exist without pain.
I’ve been thinking. In doing the philpapers inspired Philosophy 101 series (found here and here, so far), touching on the questions asked in the largest ever survey of philosophers, i thought i would give some nice, basic factfiles explaining what some of the key philosophers have brought to the philosophical table. We hear so much about Aristotle, Plato, Hume and Descartes, but who the hell are they and what did they think (in a really short, easy-to digest manner)?