These great philosophers are explorers. Those who are great are those who have discovered continents. Those who are not great are those who have only thought of being solemnly accepted at the Sorbonne.
There is a certain world, a universe of thought. On the face of this world geographies can be drawn. In the depth of this world geologies can make deeper engravings. The public, so to speak, always believes, and the philosophers almost always believe, that they are quarreling over the the same terrain. Neither sees that they are plunging into different continents.
Charles Péguy, Notes on Bergson and Descartes, Ward, tr., Cascade Books (Eugene, OR: 2019) p. 58.