A.A. Long summarizes the Stoic philosophical system and highlights the connection between its physics and ethics in Hellenistic Philosophy; Stoics, Epicureans, Sceptics. An outline of his thought follows:[2]
• The Stoics “prided themselves” on the coherence of their philosophical system
• They believe the universe is “amenable to rational explanation” because it is “rationally organized.”
• Mankind derives their rationality from the same logos embodied in the universe.
• Cosmic and human events are consequences of the same logos.
• Mankind is related to cosmic Nature or God through the rationality of the logos.
• Full recognition of the implications of our relationship to cosmic Nature will inspire us to live up to the excellence of our human potential by living in agreement with cosmic Nature.
• Natural philosophy (science) and logic are tools that enable mankind to know what facts are true.
• “The coherence of Stoicism is based upon the belief that natural events are so causally related to one another that on them a set of propositions can be supported which will enable a man to plan a life wholly at one with Nature or God.”
link
STOICISM: The Connection Between Physics and Ethics
American Buddhist Net 