Columbia subject headings:
Ethics, Ancient.
Seneca, Lucius Annaeus, approximately 4 B.C.-65 A.D. Epistulae morales ad Lucilium.
Harvard subject headings:
Ethics, Ancient.
Seneca, Lucius Annaeus, approximately 4 B.C.-65 A.D. Epistulae morales ad Lucilium.
Princeton subject headings:
Seneca, Lucius Annaeus, approximately 4 B.C.-65 A.D. Epistulae ad Lucilium.