“Yesterday is History, Tomorrow a Mistery. Today is a gift, that's why they call it the present.”

“I tend not to look back. What’s done is done, good, bad or indifferent. I’m much more concerned with whatever’s coming next.”

“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.”

“Yesterday is history, tomorrow is a mystery, today is a gift of God, which is why we call it the present.”

“I personally believe this: We have only today; yesterday's gone and tomorrow is uncertain. That's why they call it the present. And sobriety really is a gift... for those who are willing to receive it.”

“Tomorrow is a mystery. Today is a gift. That is why it is called the present.”

“For the biographer, the final clue to character lies in the yet unread - the scribbled note, the diary page, a notation in the margin of a draft - until the day when even the most devoted portraitist of the dead says, "Enough!" Working in the service of the dead, biographers quit their labors only when the sole remaining task is the impossible - resurrection.”