This book takes as its point of departure the fact that we are situated beings. Every single moment in our lives is already given within the framework of a specific context in the midst of which we understand ourselves and what surrounds us. In the majority of cases, we do not notice this for we are overly absorbed in our everyday practices. It is only when we think about what makes even the most unfamiliar ambiance so familiar that this circumstance becomes manifest. This recognition, far from leaving us unscathed, poses a series of epistemological problems. In effect, are our knowledge attributions dependent on things existing in the world or are they relative to contexts by means of which the world is construed? If the latter is the case, can we actually talk about the world or should we talk instead about worlds being construed by different individual and social perspectives? But if this is so, where is a solid ground to be found for what we call knowledge?