Trails are relatively inexpensive. A splendid national network of all kinds of trails can be established at less cost than a few hundred miles of super highway.

Franklin Roosevelt was very concerned about environmental issues.

We're going to have to do a whole lot more, and give nature at least a chance to repair some of the damage we've done.

As far as I know, most organizations are avoiding population issues because they're politically frightened by the charge that comes from some proponents of immigration that if you oppose the immigration policy we have now, you're a racist.. There is no way in the world we can forge a sustainable society without stabilizing the population. ... There's no practical way of stabilizing the population of the U.S. without reducing the immigration rate. When do we decide we have to do something, or do we wait until things are as bad here as they are in the countries people want to leave?

...Your company...will send drugs to all the underdeveloped countries of the world, and since they do not have any standards, we will fool them all and can make a great big profit and never tell the doctors that there is a risk.....You will meet the standards of the country in which you are advertising, not the...proper standard...I would think that you would not sleep at night....I do not think this country will not stand for it.

Dr. S. Dillon Ripley, secretary of the Smithsonian Institute, believes that in 25 years, somewhere between 75 and 80 percent of all the species of living animals will be extinct.

We must realize that we're all part of a web of life around the world. Anytime you extinguish a species, the consequences are serious.