Abstract

Some problems, Aristotle remarks, are so deep it is hard not only to find solutions, but hard even to think out the difficulties well. One such is what we here term the problem of the continuant. When something is generated in the unqualified sense of the term, that is, comes to be not just blue or hot or next to something, but is generated as an entity, what is it that survives the change from the original materials? This is a very old problem: it fascinated Aristotle, and was of endless interest to the medievals. Some very old problems—for example, about the nature of the matter of the unchangeable heavenly bodies—we now see rest on false presuppositions. There are other ancient problems, however, such as the problem of the continuant, which for all of our knowledge of physics and chemistry seem to retain their power to mystify and intrigue.