pg.55, opening quotation

[iceonfire1]

The opening quotation, "A ship in port is safe, but that is not what ships are for." is apocryphally attributed to Grace Harper from ~1980, but the saying is originally from John Shedd's book "Salt from my Attic", published in 1928. See https://en.wikiquote.org/wiki/Grace_Hopper#Misattributed for details.