"Throughout their early stages the movements of civilization—for, properly speaking, there was no one movement—were very slow, were local in space, and were partial in the sense that each developed along but few lines. Of the numberless years that covered these early stages we have no record. They were the years that saw such extraordinary discoveries and inventions as fire, and the wheel, and the bow, and the domestication of animals. So local were these inventions that at the present day there yet linger savage tribes, still fixed in the half-bestial life of an infinitely remote past, who know none of them except fire—and the discovery and use of fire may have marked, not the beginning of civilization, but the beginning of the savagery which separated man from brute."

“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.”