“Yesterday is another world. I want to go back there.”

“Look forward, not back. Correct your course and go on. You cannot undo yesterday's journey.”

“Yesterday I was clever, so I wanted to change the World. Today I am wise, so I am changing myself.”

“I could tell you my adventures—beginning from this morning,” said Alice a little timidly; “but it’s no use going back to yesterday, because I was a different person then.”

“CALVIN:
When I grow up I want to be an inventor. First I will invent a time machine. Then I'll come back to yesterday and take myself to tomorrow and skip this dumb assignment.”

“Yesterday I did not want to be borrowed but this is the typewriter that sits before me and love is where yesterday is at.”

“Yesterday I wanted to turn inside out.”

“They can keep their God, they can keep their Light. I want the world back. I want questions, not the answer. I want my own life back, and my own death!”

“Oh, yesterdays are over my shoulder,
So I can't look back for too long.
There's just too much to see waiting in front of me,
and I know that I just can't go wrong.”

“I just want it to go back to the way it was."
"It'll never go back to the way it was, Frankie. But you have to make sure it goes forward.”