Lives Of The Ancient Philosophers translated from the French by the Rev. John Cormack (1900)
The Works of Edgar Allan Poe, Volume Nine, Essays-Philosophy, by Edgar Allan Poe (1904)
The Golden Sayings of Epictetus with the Hymn of Cleanthes, translated and arranged by Hastings Crossley (1909)
Forty Thousand Quotations, Prose and Poetical, compiled by Charles Noel Douglas (1917)
Freethinkers of the Nineteenth Century by Janet E. Courtney (1920)
The Story of Philosophy by Will Durant (1926)
Modern Classical Philosophers compiled by Benjamin Rand Ph.D (1908)