Realists are the only philosophers not actively seeking answers. They are content with accepting that the world around them exists, and don't bother themselves about how we came to be. They focus on where we're going, rather than how we got here. Realists also tend to be interested in "universals" - concepts that can describe large groups, rather than single objects. For example, there are more interested in the human race as a whole, rather than specific types of people. This philosophy is also sometimes called Idealism.
Famous realists include: Plato.
The opposite of Realism is Foundationalism.