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

The more we pour the big machines, the fuel, the pesticides, the herbicides, the fertilizer and chemicals into farming, the more we knock out the mechanism that made it all work in the first place.

All technology should be assumed guilty until proven innocent

Overpopulation is perhaps the biggest problem facing us, and immigration is part of that problem. It has to be addressed.

Truth and beauty can still win battles. We need more art, more passion, more wit in defense of the Earth.

Sometimes luck is with you, and sometimes not, but the important thing is to take the dare. Those who climb mountains or raft rivers understand this.

Understanding how DNA transmits all it knows about cancer, physics, dreaming and love will keep man searching for some time.

We are no longer inheriting the Earth from our parents, we are stealing it from our children.

Without wilderness, the world's a cage.

Apollo 13, as you may remember, gave us a reactor that is bubbling away right now somewhere in the Pacific. It's supposed to be bubbling away on the moon, but it's in the Pacific Ocean instead.

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

Essential to time-management is a change in focus, a change from being ‘busy’ to a focus on outcomes

The first interview I went on I got at age 5. It was a commercial for First Federal Bank.

I have four kids, seven grandkids, and four great-grandkids. Maybe I can become a great-great-grandfather if I hang on!

Never once have I thought that Social Security would be something that would ever be available to me.

Used to be, conservatives revered the Average American, that Norman Rockwell oil painting of diner food, humble faith, honest toil, and Capraesque virtue.

The Charkha in the hands of a poor widow brings a paltry price to her, in the hands of Jawaharlal; it is an instrument of India's freedom.

The Palm is a joint for sadists to entertain masochists.

Tie your camel up as best you can, and then trust it to Providence.

Most burning issues generate far more heat than light.