The days of our years arethreescore years and ten; and if by reasonof strengththey be fourscore years, yet istheir strength labour and sorrow; for it is soon cut off, and we fly away.

-Bible (Old Testament)
Psalms 90:10.

Now, of my threescore years and ten, Twenty will not come again, And take from seventy springs a score, It only leaves me fifty more.

-Housman, A(lfred) E(dward)
  A Shropshire Lad, no.2.