Theodore Roosevelt, Jr., the former governor of New York and a Spanish-American War hero, was president of the United States between 1901 an 1909. He ran again in 1912, starting the short-lived Bull Moose Party and surviving an assassination attempt, but came in second, ahead of his successor and political enemy William Howard Taft, but well behind Woodrow Wilson.
He was respected enough to merit being carved in stone in North Dakota along side of three other fairly good guys.
Roosevelt was extremely quotable. The following quotes barely scratch the surface:
The worst lesson that can be taught a man is to rely upon others and to whine over his sufferings.
To sit home, read one's favorite paper, and scoff at the misdeeds of the men who do things is easy, but it is markedly ineffective. It is what evil men count upon the good men's doing.
It is no use to preach to [children] if you do not act decently yourself.
Probably the greatest harm done by vast wealth is the harm that we of moderate means do ourselves when we let the vices of envy and hatred enter deep into our own natures.
I don't pity any man who does hard work worth doing. I admire him. I pity the creature who does not work, at whichever end of the social scale he may regard himself as being.
The only man who makes no mistakes is the man who never does anything.
Power invariably means both responsibility and danger.
In this life we get nothing save by effort. Freedom from effort in the present merely means that there has been stored up effort in the past.
When the weather is good for crops it is also good for weeds.
...the chief factor in any man’s success or failure must be his own character—that is, the sum of his common sense, his courage, his virile energy and capacity. Nothing can take the place of this individual factor.
More Roosevelt quotes can be found here. They are worth reading.