ancient Greek philosopher who succeeded Zeno of Citium as frontrunner regarding the Stoic school (300-232 BC)
(c. 310-230 B.C.) Zeno's disciple and one of the most prominent thinkers of the Stoic School. Of their writings only a hymn to Zeus is extant. -- R.B.W.
There is, however, appended one of those perplexing statements of personal opinion (for Hume declares Cleanthes to be his mouthpiece) not uncommon among writers of this period.