Year by year we are learning that in this restless, strenuous American life of ours vacations are essential.

History in its broadest aspect is a record of man's migrations from one environment to another.

The human organism inherits so delicate an adjustment to climate that, in spite of man's boasted ability to live anywhere, the strain of the frozen North eliminates the more nervous and active types of mind.

Year by year we are learning that in this restless, strenuous American life of ours vacations are essential.

In America the most widespread type of forest is the evergreen coniferous woodland of the north.

Man could not stay there forever. He was bound to spread to new regions, partly because of his innate migratory tendency and partly because of Nature's stern urgency.

The Indians could not undertake any widespread cultivation of the plains not only because they lacked iron tools but also because they had no draft animals.

Thus the races, though alike in their physical response to climate, may possibly be different in their mental response because they have approached America by different paths.

As a matter of fact, an ordinary desert supports a much greater variety of plants than does either a forest or a prairie.

Surprising as it may seem, this study indicates that similar conditions are best for all sorts of races.

The buffalo is a surprisingly stupid animal.

Although mountains may guide migrations, the plains are the regions where people dwell in greatest numbers.

For the source of any characteristic so widespread and uniform as this adaptation to environment we must go back to the very beginning of the human race.

From first to last the civilization of America has been bound up with its physical environment.

America is the last great goal of these migrations.

We are learning, too, that the love of beauty is one of Nature's greatest healers.

America forms the longest and straightest bone in the earth's skeleton.

According to the now almost universally accepted theory, all the races of mankind had a common origin.

It seems strange that almost no other traces of the strong vikings are found in America.

Curiously enough man's body and his mind appear to differ in their climatic adaptations.

The Negro, however, has been tested on an extensive scale.

The coast of British Columbia was one of the three chief centers of aboriginal America.

In fact, the history of North America has been perhaps more profoundly influenced by man's inheritance from his past homes than by the physical features of his present home.

A journey of four hundred and thirty miles can be made in any part of the United States, but in Turkey it takes as many days.

The evidence points to central Asia as man's original home, for the general movement of human migrations has been outward from that region and not inward.

Although farming of any sort was almost as impossible in the plains as in the dry regions of winter rains farther west, the abundance of buffaloes made life much easier in many respects.

Geologists are rapidly becoming convinced that the mammals spread from their central Asian point of origin largely because of great variations in climate.

Fertile soil, level plains, easy passage across the mountains, coal, iron, and other metals imbedded in the rocks, and a stimulating climate, all shower their blessings upon man.

Again and again, to be sure, on the way to America, and under many other circumstances, man has passed through the most adverse climates and has survived, but he has flourished and waxed strong only in certain zones.

The geysers and hot springs of the Yellowstone are another proof of recent volcanic activity.

No part of the world can be truly understood without a knowledge of its garment of vegetation, for this determines not only the nature of the animal inhabitants but also the occupations of the majority of human beings.

Today, no less than in the past, the tetrahedral form of the earth and the relation of the tetrahedron to the poles and to the equator preserve the conditions that favor rapid evolution.

After washing there was no place to pour the water except out of the window onto the heads of the people in the streets, which is the proper place to throw everything that is not wanted.

Except on their southern borders the great northern forests are not good as a permanent home for man.

Nevertheless most of the evergreen forests of the north must always remain the home of wild animals and trappers, a backward region in which it is easy for a great fur company to maintain a practical monopoly.

There is no executive order; there is no law that can require the American people to form a national community. This we must do as individuals and if we do it as individuals, there is no President of the United States who can veto that decision.

Every American deserves to live in freedom, to have his or her privacy respected and a chance to go as far as their ability and effort will take them - regardless of race, gender, ethnicity or economic circumstances.

Under current law volunteers who are not working with an official nonprofit organization are not covered by the Volunteer Protection Act. Therefore, there are absolutely no legal protections for the average American who wishes to volunteer.

There are those, I know, who will reply that the liberation of humanity, the freedom of man and mind, is nothing but a dream. They are right. It is. It is the American Dream.

The thing is there have been American movies that are similar to Solaris, like Alien had a lot of things that are similar, although it's also got the horror element.

On the road to equality there is no better place for blacks to detour around American values than in forgoing its example in the treatment of its women and the organization of its family.

The generic Canadian style of illustration is different from the generic American style.

But the deep desire for peace remained with the American people.

And while the U.S. can never be 100 percent safe from a future strike, our government is working around the clock on measures to protect the American people.

All we're getting from the Democratic majority in Congress and from this White House is more bailouts, more spending, more planned stimulus, more deficits and debt, and the American people have had it.

Who cares about that stuff? This is America, not Jerusalem. I'm an American. Let Harry be a Jew.

The greatest public health threat for many American women is the men they live with.

The belief that the good in American society will finally win out... I don't believe any more.

I suppose, in a way, this has become part of my soul. It is a symbol of my life. Whatever I have done that really matters, I've done wearing it. When the time comes, it will be in this that I journey forth. What greater honor could come to an American, and a soldier?