For any especial science there are necessarily others which are coordinated with it. If each is the development of a particular intuition, then either they belong together as parts of a greater way of thinking which alone allows us to understand the way in which they belong together, and so on as far as a highest intuition which encompasses everything and which would then be the object of the highest science; or else they belong apart from one another, but even then each is only a perfect science when there is an accompanying knowledge of this relationship, cognition of which would then be the highest form of knowledge.

If each especial science is a whole composed of logical deductions following from a particular point, then either that point is a subordinate one, itself found by a process of deduction, up as far as a highest point which is both necessarily and originally posited, together with the way of arriving at it, by the highest knowledge, without which even that science is imperfect; or else the starting-points for all the especial sciences are originally posited, each one separately, and then they are all only perfect sciences if the relationship between their beginnings is known to each one of them, so that this would then be the highest form of knowledge.