Even between man and man, then, constituted, as men are, alike, various distinct instruments, keys, or calculi of thought obtain, on which their ideas and arguments shape themselves respectively, and which we must use, if we would reach them. The cogitative method, as it may be called, of one man is notoriously very different from that of another; of the lawyer from that of the soldier, of the rich from that of the poor. The territory of thought is portioned out in a hundred different ways. Abstractions, generalizations, definitions, propositions, all are framed on distinct standards; and if this is found in matters of this world between man and man, surely much more must it exist between the ideas of men, and the thoughts, ways, and works of God.
[John Henry Newman, The Theory of Developments in Religious Doctrine (Sermon 15), Oxford University Sermons.]
