The philosophy of Diogenes pays special attention to knowledge. Diogenes bases his thought on the well-known thesis of Parmenides which identifies einai and noein, combining it with the nous of Anaxagoras. According to Diogenes, the intellect (noesis) is embodied in the formal features of things and therefore is powerful, like the nous of Anaxagoras. The aim of the following pages is to show, in confrontation with Laks, that noesis does not homogenize the cosmos, but rather it diversifies it.

In order to show the relevance of the Presocratic thinkers, certain achievements are sometimes presented as anticipations of some discoveries made by contemporary science. Anaxagoras’ explanation for the origin of the world in particular has been compared to the Big Bang theory by some scholars. The purpose of this article is to show why this theory is very different from Anaxagoras’ view of the origin of the world. For Anaxagoras, the world does not start from a tiny expanding particle. Rather, (...) already before the beginning of the cosmos, there is a totality filled by a primordial mixture. The world emerges in it as a kind of dilating bubble. The cosmos grows by means of a whirl which absorbs the exterior mixture, deconstructing it to give origin to the different things that we know. This vortex is a unique explanation for multiple phenomena, not only helping to understand the origin of the world but also the present cosmos, which is in continuous expansion, since cosmogenesis has not been interrupted. (shrink)

This article aims at clarifying some issues raised by a recent book of Daniel W. Graham about the Presocratic cosmology. It particularly intends to shed some light on the understanding of Anaxagoras’ universe by suggesting some reasons why, despite Graham’s opinion, it is still possible to think that the stars were flat according to him. Another goal is highlighting the importance of the comprehensive physical theory of Anaxagoras, based on a circular motion called perichoresis, which would explain diverse phenomena in (...) a consistent way by introducing simplicity in his cosmology. (shrink)