Immanuel Kant — "Live your life as though your every act were to become a universal law."

"A good will is not good because of what it effects or accomplishes—because of its fitness for attaining some proposed end: it is good only by virtue of the volition—that is, it is good in itself."

"It is not necessary that I should be happy, but it is necessary that I should be moral."

"All men are therefore equal, not in the sense that they are all alike, but in the sense that they all have the same rights and duties."

"The greatest good is the moral law itself."

"The American Indians are too weak for hard labor, too indifferent for industry, and incapable of any culture."