"From year to year, environmental changes are incremental and often barely register in our lives, but from evolutionary or geological perspectives, what is happening is explosive change."

"With the world's human population now at seven billion and growing, and the demand for technology and modern conveniences increasing, we can't control all our negative impacts. But we have to find better ways to live within the limits nature and its cycles impose."

"For the sake of our health, our children and grandchildren and even our economic well-being, we must make protecting the planet our top priority."

"We can't blame children for occupying themselves with Facebook rather than playing in the mud. Our society doesn't put a priority on connecting with nature. In fact, too often we tell them it's dirty and dangerous."

"To leave a mark on the world, remember that a single moment of clarity can change a lifetime."

"The foundation of joy is a single spark of imagination can ignite the world."

"It is a radiant truth that love is the bridge that unites two souls across the chasms of mortal solitude."

"I have to be alone very often. I'd be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That's how I refuel."