In 1997, a book was published by Robert Kiyosaki about money called Rich Dad Poor Dad. When this book came out, many people started talking about it. Today, 26 years later, the book is still popular.

Dr. Paul Farmer at the Butaro Hospital built by Partners In Health for the Rwanda Ministry of Health. He was a co-founder of Partners In Health. (Photo by William Campbell/Corbis via Getty Images) ...

We have all experienced the feeling of making a mistake or learning a lesson the hard way. Learning from our own mistakes may not always be easy, but it is crucial to extract valuable lessons and ...