Seneca the Younger

His Letters

On worldliness and retirement
On feasting and fasting
On philosophy and riches
On the philosophy, the guide of life
On brawn on brains
On reasons for withdrawing from the world
On groundless fears
On old age
On the blush of modesty
On living to oneself
On philosophy and friendship
On the philosopher's seclusion
On crowds
On sharing knowledge
On the philosopher's mean
On the terrors of death
On true and false friendship
On discursiveness in reading
On saving time