When I give my time to a worthy cause, it's time well spent. Lending a voice to help raise money - or perhaps just awareness - is the least I can do to give back. When I spend time with people who are fighting for children, it puts everything into perspective.
We spend more than a million dollars a year on our colleges and university, and it is money well spent; but we must have education that fits not the few but the many for the business of life.
Critical thinking is not something you do once with an issue and then drop it. It requires that we update our knowledge as new information comes in. Time spent evaluating claims is not just time well spent. It should be considered part of an implicit bargain we've all made.
I'm still passionately interested in what my fellow humans are up to. For me, a day spent monitoring the passing parade is a day well-spent.
To pursue your dreams, to have them come true, to have made a difference, to have changed society, to have fought against powerful forces... that's a life well-spent.
Even if you only meditate for ten minutes a day, it is ten minutes well spent and, in the long term, can give you the wisdom to see that the answers to our problems lie within us.