Don't live in the past. There's no point. You can't change anything. What a waste of time.

If you live your life in the past, you waste the life you have to live.

Insecurity is a waste of time.

I don't get jealous of people. Jealousy is such a waste of time because you're jealous of them, and they go about their lives and have a wonderful time, so what's the point?

Nothing is a waste of time if you use the experience wisely.

Inequality is a terrible waste of time, a waste of people's resources.