"We demand that big business give the people a square deal; in return we must insist that when any one engaged in big business honestly endeavors to do right he shall himself be given a square deal; and the first, and most elementary, kind of square deal is to give him in advance full information as to just what he can, and what he cannot, legally and properly do. It is absurd, and much worse than absurd, to treat the deliberate lawbreaker as on an exact par with the man eager to obey the law, whose only desire is to find out from some competent Governmental authority what the law is, and then to live up to it. Moreover, it is absurd to treat the size of a corporation as in itself a crime."

“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.”