After reading Life is Short essay by Paul Graham http://www.paulgraham.com/vb.html
Read the essay on the "Shortness of life" https://en.wikipedia.org/wiki/De_Brevitate_Vitae_%28Seneca%29
Wonderful essay, some of the sentences, that to be remembered.

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But no one values time: all use it more than lavishly, as if it cost nothing. But if mortal danger threatens them, you'll see the same people clasping their doctors' knees; if they fear a capital charge, you'll see them ready to spend all they have to stay alive. So great is the conflict in their feelings.

All that's to come lies in uncertainty: live right now.

Life is divided into three parts: past, present, and future. Of these, the present is brief, the future doubtful, the past certain.

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36 years 3 months have passed. How much time did I live so far? Don't know.
Probably another 30-60 years will be alive. But uncertain time it is.

What I want to do with the time? The uncertain time. You just get a day at a time. Relax and be aware of it. Help the mind absorb the truth of uncertain time.

If today is my last day, what will I do?
Spend time with my parents, children, brothers and sisters. Spend time with wife on the beach. Spend some time in solitude.