Acres of Diamonds (Annotated) (Spanish Edition)

"Acres of Diamonds" originated as a speech which Conwell delivered over 5,000 times around the world. It was first published in 1890 by the John Y. Huber Company of Philadelphia.
The central idea of the work is that one need not look elsewhere for opportunity, achievement, or fortune—the resources to achieve all good things are present in one's own community. This theme is developed by an introductory anecdote, credited by Conwell to an Arab guide, about a man who wanted to find diamonds so badly that he sold his property and went off in futile search for them. The new owner of his home discovered that a rich diamond mine was located right there on the property. Conwell elaborates on the theme through examples of success, genius, service, or other virtues involving ordinary Americans contemporary to his audience: "dig in your own backyard!".

Following are some interesting quotes to illustrate the thought of Conwell:

- I say that you ought to get rich, and it is our duty to get rich.
- To make money honestly is to preach the gospel.
- A man is not really a true man until he owns his own home, and they that own their homes are made more honorable and honest and pure, true and economical and careful, by owning the home.
- There is not a poor person in the United States who was not made poor by his own shortcomings, or by the shortcomings of someone else. It is all wrong to be poor, anyhow.
- Love is the grandest thing on God's earth, but fortunate the lover who has plenty of money.