The fragments of the early Stoics are quoted from von Arnim: _Stoicorum
Veterum Fragmenta_, I-III, 1903-05 (_S V F_).
Benn: _Greek Philosophers_, pp. 326-364; 452-473; 523-588. Caird:
_Theology in Greek Philosophers_: II, pp. 31-316. Louis: _Doctrines
religieuses_, pp. 199-343. Decharme: _Critique des traditions
religieuses_, pp. 259-501. Zeller: _Philosophie der Griechen_: III,
1^4, pp. I-373; III, 2^4, pp. 82-218; 254-735. The English volume:
_Stoics, Epicureans, and Sceptics_, includes no more than its title
indicates. E. V. Arnold: _Roman Stoicism_, 1911. A useful book. E.
Bevan: _Stoics and Sceptics_, 1913. Renan: _Marc-Aurèle_, 1882. E.
Bréhier: _Les idées philosophiques et religieuses de Philo_, 1908. J.
Martin, _Philon_, 1908. Whittaker: _The Neo-Platonists_, 1901. B. A. G.
Fuller: _The Problem of Evil in Plotinus_, 1912.