"Let byegones be byegones,”—they foolishly say, And bid me be wise and forget them; But old recollections are active to-day, And I can do nought but … - Martin Farquhar Tupper

"Let byegones be byegones,”—they foolishly say, And bid me be wise and forget them; But old recollections are active to-day, And I can do nought but regret them; Though the present be pleasant, all joyous and gay, And promising well for the morrow, I love to look back on the years past away, Embalming my byegones in sorrow.