The clock is running.
Make the most of today.
Time waits for no man.
Yesterday is history.
Tomorrow is a mystery.
Today is a gift.
That's why it is called the present.
Emily Dickinson's poem #1292, "Yesterday is History."
Yesterday is History,
'tis so far away
yesterday is Poetry,
'tis Philosophy
Yesterday is Mystery
Where it is today
While we shrewdly speculate
Flutter both away.