We cannot doubt that self-interest is the mainspring of human nature. It must be clearly understood that this word is used here to designate a universal, incontestable fact, resulting from the nature of man, and not an adverse judgment, as would be the word selfishness.

Often the masses are plundered and do not know it.

Treat all economic questions from the viewpoint of the consumer, for the interests of the consumer are the interests of the human race.

We hold from God the gift which includes all others. This gift is life - physical, intellectual, and moral life.

It's always tempting to do good at someone else's expense

We cannot but be astonished at the ease with which men resign themselves to ignorance about what is most important for them to know; and we may be certain that they are determined to remain invincibly ignorant if they once come to consider it as axiomatic that there are no absolute principles.

If you wish to prosper, let your customer prosper. When people have learned this lesson, everyone will seek his individual welfare in the general welfare. Then jealousies between man and man, city and city, province and province, nation and nation, will no longer trouble the world.