Moral Letters to Lucilius/Letter 3 - Wikisource, the Free Online Library

Jason Hemlock Stoicism: How to Use Stoic Philosophy to Find Inner Peace and Happiness

Lucius Annaeus Seneca Seneca: Letters from a Stoic (and Biography) [Annotated]

Ichiro Kishimi, Fumitake Koga The Courage to Be Disliked: The Japanese Phenomenon That Shows You How to Change Your Life and Achieve Real Happiness

Seneca, Letters From a Stoic

betterman.com Musing Over Things I Wish I Had Committed to as a Young Man