John Bartlett (1820–1905). Familiar Quotations, 10th ed. 1919.
8954 Epitetus AD 50- 138 John Bartlett
| NUMBER: | 8954 |
| AUTHOR: | Epictetus (A.D. c. 50–c. 138) |
| QUOTATION: | The essence of good and evil is a certain disposition of the will. |
| ATTRIBUTION: | Of Courage. Chap. xxix. |