The Computation

For my first twenty years, since yesterday, I scarce believed thou couldst be gone away; For forty more I fed on favours past, And forty on hopes that thou wouldst they might last; Tears drown'd one hundred, and sighs blew out two; A thousand, I did neither think nor do, Or not divide, all being one thought of you; Or in a thousand more, forgot that too. Yet call not this long life; but think that I Am, by being dead, immortal; can ghosts die?