Time present and time past
Are both perhaps present in time future,
And time future contained in time past.
If all time is eternally present
What might have been is an abstraction
Remaining a perpetual possibility
Only in a world of speculation.
What might have been and what has been
Footfalls echo in the memory
Down the passage which we did
Towards the door we never opened.
Into the rose-garden My words echo
But to what purpose
Disturbing the dust on a bowl of rose-leaves
I do not know.
-"four quartets" by: t.s. eliot