Do Not Talk About The Past

Many people, especially old men, like to talk about the past. This is because old people may not have present glory, and the only thing they can talk about is their past experiences. It is normal for them to occasionally talk about the past, but in most cases, they talk to everybody they meet.
However, what is gone is gone forever and can never return. Whether we did wrong or right in the past, it is over, and it is only history. Whether the past days were dark or glorious, it is meaningless to dwell on it. Talking about it too much is a waste of time.
We do not know what tomorrow will bring. There could be an earthquake or a world war. What we should focus on is the present moment in which we live our lives. We should seize our time and use it for our very purpose instead of letting time slip away and regretting it later.