"How often have I told him that vengeance is a waste of time.

He is worried to know how to destroy you, and that is wasting more time.

You are worried for fear he will injure you, and so you also are wasting time.

My, my! What a waste of time is going on in this castle!" "Seems to me that we have so much time it doesn't matter," said Trot.

"What's time for, anyhow ?" "Time is given us to be happy, and for no other reason," replied the boy soberly.