The modern naturalist must realize that in some of its branches his profession, while more than ever a science, has also become an art.
Great thoughts speak only to the thoughtful mind, but great actions speak to all mankind. Theodore Roosevel
Avoid the base hypocrisy of condemning in one man what you pass over in silence when committed by another.
After the war, and until the day of his death, his position on almost every public question was either mischievous or ridiculous, and usually both.
A man who is good enough to shed his blood for the country is good enough to be given a square deal afterwards.
The nation should be ruled by the Ten Commandments.
I wish to see the Bible study as much a matter of course in the secular colleges as in the seminary.
The only time you really live fully is from thirty to sixty. The young are slaves to dreams; the old servants of regrets. Only the middle-aged have all their five senses in the keeping of their wits.
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.
I hate a man who skins the land.
Don't foul, don't flinch-hit the line hard.
The immigrant must not be allowed to drift or to be put at the mercy of the exploiter. Our object is not to imitate one of the older racial types, but to maintain a new American type and then to secure loyalty to this type. We cannot secure such loyalty unless we make this a country where men shall
My position as regards the monied interests can be put in a few words. In every civilized society property rights must be carefully safeguarded; ordinarily and in the great majority of cases, human rights and property rights are fundamentally and in the long run, identical; but when it clearly appea
After nightfall the face of the country seems to alter marvelously, and the clear moonlight only intensifies the change. The river gleams like running quicksilver, and the moonbeams play over the grassy stretches of the plateaus...The Bad Lands seem to be stranger and wilder than ever, the silvery r
It is difficult to make our material condition better by the best law, but it is easy enough to ruin it by bad laws.
Our flag is a proud flag, and it stands for liberty and civilization. Where it has once floated, there must be no return to tyranny.
With self-discipline, all things are possible
Far better is it to dare mighty things, to win glorious triumphs, even though checked by failure...than to rank with those poor spirits who neither enjoy much nor suffer much, because they live in a gray twilight that knows not victory nor defeat.
With a great moral issue involved, neutrality does not serve righteousness; for to be neutral between right and wrong is to serve wrong.
No man is worth his salt who is not ready at all times to risk his well-being, to risk his body, to risk his life, in a great cause.
Practical efficiency is common, and lofty idealism not uncommon; it is the combination which is necessary, and the combination is rare
'Liar' is just as ugly a word as 'thief,' because it implies the presence of just as ugly a sin in one case as in the other. If a man lies under oath or procures the lie of another under oath, if he perjures himself or suborns perjury, he is guilty under the statute law.
Conservation means development as much as it does protection.A man's usefulness depends upon his living up to his ideals insofar as he can.
The name Roosevelt has this legendary force in our country at this time.
It is a great mistake to think that the extremist is a better man than the moderate. Usually the difference is not that he is morally stronger, but that he is intellectually weaker. He is not more virtuous. He is simply more foolish.
The one thing I want to leave my children is an honorable name.
The Americans of other blood must remember that the man who in good faith and without reservations gives up another country for this must in return receive exactly the same rights, not merely legal, but social and spiritual, that other Americans proudly possess. We of the United States belong to a n
The light has gone out of my life.
The unforgivable crime is soft hitting. Do not hit at all if it can be avoided; but never hit softly.
The man who holds that every human right is secondary to his profit must now give way to the advocate of human welfare.