Seneca 
On benefits [EPUB ebook] 

On Benefits (De Beneficiis) is a first-century work by Seneca the Younger. It forms part of a series of moral essays (or ‘Dialogues’) composed by Seneca.
On Benefits concerns the award and reception of gifts and favours within society, and examines the complex nature and role of gratitude within the context of Stoic ethics.
Seneca the Younger (c. 4 BC – AD 65), fully Lucius Annaeus Seneca and also known simply as Seneca was a Roman Stoic philosopher, statesman, dramatist, and—in one work—satirist of the Silver Age of Latin literature.
Translated by Aubrey Stewart.