Primary source
On the Shortness of Life (De Brevitate Vitae)
Written by Seneca · 49 · grounds Lucius Annaeus Seneca
Overview
A short essay addressed to Seneca's friend Paulinus on the use of time. The core argument: life is long enough if well invested; we make it short by selling it cheaply, hour by hour, to projects we have not chosen.
A full write-up of this book has not been published yet.
Skills drawn from this book
Installable Claude Code skills grounded in this text. Each one teaches a framework the book actually argues for.