Since some philosophers lived in different eras – and perhaps in cultures different from ours – one should try to examine the work of each philosopher. I mean, we must try to grasp the exact research interests of each philosopher. Leonardo DiCaprio christmas sweatshirt. This philosopher may want to understand the origins of plants and animals. Others want to know whether there is a God or whether man has an immortal soul. Once we have identified what a particular philosopher is studying, it will be easier to follow his flow of thought. For no philosopher is interested in all philosophy.