[singing] You've got to grind, grind, grind, at that grindstone / Though childhood slips like sand through a sieve / And all too soon they've up and grown / And then they've flown / And it's too late for you to give.
[singing] You've got to grind, grind, grind, at that grindstone / Though childhood slips like sand through a sieve / And all too soon they've up and grown / And then they've flown / And it's too late for you to give.
http://www.moviequotedb.com/movies/mary-poppins/quote_14741.html