Lucius Annaeus Seneca was a Roman statesman and stoic philosopher who recognized that life is the most important subject we should study. In his moral essay, On the Shortness of Life, he reminds us that time is a non-renewable resource. Seneca cautions us to treat time as a valuable commodity and offers insights into time management, including not investing time in preparing for life, living life for ourselves, premeditating malorum, making long-term rewards immediate, and making the most of our free time. Seneca urges us to avoid procrastination and distractions, as they prevent us from making the most of our time, and to invest our time in creating a life we love. We should make the most of our free time and live in the present, rather than worry about the future or waste time on things we don’t enjoy.