Protrepsis and paraenesis
（重定向自Protreptic）
In rhetoric, protrepsis (Greek: πρότρεψις) and paraenesis (παραίνεσις) are two closely related styles of exhortation that are employed by moral philosophers. While there is a widely accepted distinction between the two that is employed by modern writers, classical philosophers did not make a clear distinction between the two, and even used them interchangeably.