“Coming back to where you started is not the same as never leaving.”

“Why do you go away? So that you can come back. So that you can see the place you came from with new eyes and extra colors. And the people there see you differently, too. Coming back to where you started is not the same as never leaving.”

“It is important that we know where we come from, because if you do not know where you come from, then you don't know where you are, and if you don't know where you are, you don't know where you're going. And if you don't know where you're going, you're probably going wrong.”

“You know, I never imagined there were he-dryads. Not even in an oak tree."One of the giants grinned at him.Druellae snorted. "Stupid! Where do you think acorns come from?”

“The past needs to be remembered. If you do not know where you come from, then you don’t know where you are, and if you don’t know where you are, then you don’t know where you’re going.”

“Rincewind trudged back up the beach. "The trouble is," he said, "is that things never get better, they just stay the same, only more so.”

“If you do not know where you come from, then you don't know where you are, and if you don't know where you are, then you don't know where you're going. And if you don't know where you're going, you're probably going wrong.”