Bring diversity back to agriculture. That's what made it work in the first place.

Childbearing should be a punishable crime against society, unless the parents hold a government license. All potential parents should be required to use contraceptive chemicals, the government issuing antidotes to citizens chosen for childbearing.

Politics is democracy's way of handling public business. We won't get the type of country in the kind of world we want unless people take part in the public's business.

For how many people do you think might yet stand on this planet before the sun grows cold? That's the responsibility we hold in our hands.

Perhaps we'll realize that each of us has not one vote but ten thousand or a million.

Without wilderness, the world's a cage.

It seems that every time mankind is given a lot of energy, we go out and wreck something with it.