Memento mori

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“Mento mori—remember death! These are important words. If we kept in mind that we will soon inevitably die, our lives would be completely different. If a person knows that he will die in a half hour, he certainly will not bother doing trivial, stupid, or, especially, bad things during this half hour. Perhaps you have half a century before you die—what makes this any different from a half hour?”
― leo tolstoy