Never trust a man who says he is only a little crooked, and that the crookedness is exercised in your interest.
I do not intend that our natural resources shall be exploited by the few against the interests of the many.
The little owls call to each other with tremulous, quavering voices throughout the livelong night, as they sit in the creaking trees.
I wish that all Americans would realize that American politics is world politics.
While my interest in natural history has added very little to my sum of achievement, it has added immeasurably to my sum of enjoyment in life.
I do not believe that any man can adequately appreciate the world of to-day unless he has some knowledge of – a little more than a slight knowledge, some feeling for and of – the history of the world of the past.
A grove of giant redwood or sequoias should be kept just as we keep a great and beautiful cathedral.
Nothing could be more lonely and nothing more beautiful than the view at nightfall across the prairies to these huge hill masses, when the lengthening shadows had at last merged into one and the faint after-glow of the red sunset filled the west.
Rough board shelves hold a number of books, without which some of the evenings would be long indeed.
I feel most emphatically that we should not turn into shingles a tree which was old when the first Egyptian conqueror penetrated to the valley of the Euphrates.
Society has no business to permit degenerates to reproduce their kind.
No man who is not willing to bear arms and to fight for his rights can give a good reason why he should be entitled to the privilege of living in a free community.
The Bad Lands grade all the way from those that are almost rolling in character to those that are so fantastically broken in form and so bizarre in color as to seem hardly properly to belong to this earth.
The extermination of the buffalo has been a veritable tragedy of the animal world.
This broken country extends back from the river for many miles and has been called always be Indian, French voyager and American trappers alike, the Bad Lands.
Avoid the base hypocrisy of condemning in one man what you pass over in silence when committed by another.
Success, the real success, does not depend upon the position you hold but upon how you carry yourself in that position.
The forces that tend for evil are great and terrible, but the forces of truth and love and courage and honesty and generosity and sympathy are also stronger than ever before.
Let individuals contribute as they desire; but let us prohibit in effective fashion all corporations from making contributions for any political purpose, directly or indirectly.
Americans learn only from catastrophe and not from experience.