"Personally, I do not believe that our civilization will fall. I think that on the whole we have grown better and not worse. I think that on the whole the future holds more for us than even the great past has held. But, assuredly, the dreams of golden glory in the future will not come true unless, high of heart and strong of hand, by our own mighty deeds we make them come true. We can not afford to develop any one set of qualities, any one set of activities, at the cost of seeing others, equally necessary, atrophied. Neither the military efficiency of the Mongol, the extraordinary business ability of the Phoenician, nor the subtle and polished intellect of the Greek availed to avert destruction."

“There is much talk about "jingoism". If by "jingoism" they mean a policy in pursuance of which Americans will with resolution and common sense insist upon our rights being respected by foreign powers, then we are "jingoes".”

“I don’t go so far as to think that the only good Indian is the dead Indian, but I believe nine out of every ten are, and I shouldn’t like to inquire too closely into the case of the tenth.”

“The most vicious cowboy has more moral principle than the average Indian.”

“By God, if you try anything like that, I'll kick you, I'll bite you, I'll kick you in the balls. I'll do anything to you — you'd better leave me alone.”

“When a judge decides a constitutional question, when he decides what the people as a whole can or cannot do, the people should have the right to recall that decision if they think it wrong. We should hold the judiciary in all respect; but it is both absurd and degrading to make a fetish of a judge or of anyone else.”

“If there ever was a pursuit which stultified itself by its very conditions, it is the pursuit of pleasure as the all-sufficing end of life. Happiness can not come to any man capable of enjoying true happiness unless it comes as the sequel to duty well and honestly done. To do that duty you need to have more than one trait.”