"All really civilized communities should have effective arbitration treaties among themselves. I believe that these treaties can cover almost all questions liable to arise between such nations, if they are drawn with the explicit agreement that each contracting party will respect the others territory and its absolute sovereignty within that territory, and the equally explicit agreement that all other possible subjects of controversy will be submitted to arbitration. Such a treaty would insure peace unless one party deliberately violated it. Of course, as yet there is no adequate safeguard against such deliberate violation, but the establishment of a sufficient number of these treaties would go a long way towards creating a world opinion which would finally find expression in the provision of methods to forbid or punish any such violation."

“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.”