Since time is the one immaterial object which we cannot influence - neither speed up nor slow down, add to nor diminish - it is an imponderably valuable gift. Each of us has a few minutes a day or a few hours a week which we could donate to an old folks home or a children's hospital ward. The elderly whose pillows we plump or whose water pitchers we refill may or may not thank us for our gift, but the gift is upholding the foundation of the universe.