Seneca (c. 4 BCE-65 CE) was a Roman Stoic philosopher, statesman, and playwright who made significant contributions to the development of Stoic philosophy in Rome. He emphasized the importance of personal virtue, self-control, and inner tranquility to lead a fulfilled and morally upright life. Seneca's teachings highlighted the need to accept the natural order of the universe and to remain indifferent to external events beyond one's control.