ABSTRACT
In order to emphasize the immutable nature binding those three aspects together, the Stoics resort to quite illustrative metaphors. For example, they often represent philosophy as an animal whose skeleton and sinews are Logic, while the fleshy parts are Ethics, and soul is Physics. In that tri-partite division of Stoic philosophy, no part is inferior to another. This is reflected in their teaching. They lay equal stress in the teaching of each of those parts, attributing equal significance to each one of them. They maintain that neglecting of any of those parts would result in the collapse of the whole corpus (collection of written work) of their philosophy. It is believed that Zeno learnt dialectical reasoning (the art of debating the truth of opinions) from Diodorus Cronus.
