He uses the example of Cato the Younger in illustrating the concept of a man fighting on his knees in the face of adversity in his De Providentia.  As
He uses the example of Cato the Younger in illustrating the concept of a man fighting on his knees in the face of adversity in his De Providentia.  Asthma and the treatment of one's own slaves are among the subjects of his letters dealing with morality that were written to Lucilius, while he argues that any length of life is sufficient to be lived, and whatever its length that life ought to be spent studying philosophy in De Brevitae Vitae.  Also known for a satire detailing the shortcomings of the emperor Claudius, the Apocolocyntosis, FTP, name this Roman philosopher, who was also noted for being instructed by Nero to commit suicide.
He uses the example of Cato the Younger in illustrating the concept of a man fighting on his knees in the face of adversity in his De Providentia.  
Lucius Aennaeus Seneca