The time we waste in meaningless, unproductive pursuits, as well as in “dolce far niente”, can never be restored. “Time flies”, “tempus fugit”, we say, forgetting that Virgil added an adjective : “fugit irreparabile tempus”. Like Clementine, it’s “lost and gone forever”.
At eighty you become more conscious of the time . . . you have left. However short or long it may be, I plan to use it, to enjoy it, as well as I can. But I will deliberately take time out, take five (or even more). To the famous list of Ecclesiastes 3, which begins “There is an appointed time for everything, and a time for every affair under the heavens”, I would add : There is time for being busy, and a time for doing bugger-all.