This book explores how to reclaim and live “your own time,” based on the premise of life’s finiteness. Its key features include the perspective that “the quality of time changes after age 45” and the concepts of “additive time/subtractive time.”
📝 Synopsis
- In our busy lives, we often lose awareness of our “remaining time.”
- The author argues that time is finite, and that especially after age 45, it shifts from “additive time” to “subtractive time.”
- Up to age 45, life is about accumulating experiences—”addition.”
- After age 45, it’s better to live a life of “subtraction,” using what you’ve accumulated to complete your life.
- Based on the author’s own experience with serious illness (dialysis and kidney transplant), they became acutely aware of the time they had left, and this book compiles “Time Management Techniques for Happiness.”
- In today’s world, where we are often dominated by “other people’s time”—such as social media and work—the book emphasizes the importance of clarifying your own purpose and reclaiming time for yourself—your own time.
- Specific methods for improving the quality of daily time, such as reading, meditation, rest, and journaling, are also introduced.
💬 Impressions
- Awareness of the finiteness of time
I was swept away by busyness, but this gave me a chance to stop and re-evaluate my time.
I realized that I was letting social media and work steal my time. - The concept of addition/subtraction of time
The perspective that the quality of time changes around the age of 45 is impressive, and subtracting time is not negative, but rather creative. - My time and other people’s time
I realized that I had been living by the standards of other people’s evaluations.
The idea of using time for my own happiness resonated with me. - The depth of religious and philosophical perspectives
The comparison of Christian and Buddhist views on time is interesting. - Busyness does not equal fulfillment
- If your purpose is vague, time will be stolen by time thieves
- The message that you should have your own yardstick to measure your own life is important.
