Essays Book 9: Of Tranquillity of Mind

The ninth essay from Lucius Annaeus Seneca. The work opens with Serenus asking Seneca for counsel, and this request for help takes the form of a medical consultation. Serenus explains that he feels agitated, and in a state of unstable immobility, 'as if I were on a boat that doesn't move forward and is tossed about.' Seneca uses the dialogue to address an issue that cropped up many times in his life: the desire for a life of contemplation and the need for active political engagement. Seneca argues that the goal of a tranquil mind can be achieved by being flexible and seeking a middle way between the two extremes.
Translation by Aubrey Stewart and produced by Vox Stoica
Seneca's Essays Series:
1) Of providence - addressed to Lucilius
2) On the Firmness of the Wise Man - addressed to Serenus
3-5) Of Anger (Books 1-3) - addressed to his brother Novatus
6) Of Consolation - addressed to Marcia
7) Of a Happy Life - addressed to Gallio
8) Of Leisure - addressed to Serenus
9) Of Tranquillity of Mind - addressed to Serenus
10) On the Shortness of Life - addressed to Paulinus
11) Of Consolation - addressed to Polybius
12) Of Consolation - addressed to Helvia