על טבע היקום

Strategies of polemics in Greek and Roman philosophy / edited by Sharon Weisser and Naly Thaler.

Ancient and medieval concepts of friendship / edited by Suzanne Stern-Gillet and Gary M. Gurtler, S.J.

Ancient Mediterranean philosophy : an introduction / Stephen R.L. Clark.

History of ancient philosophy / by W. Windelband; translated by Herbert Ernest Cushman.

W. Windelband (Wilhelm), 1848-1915