Ruiz explains that this agreement is certainly the most important, but that the most difficult thing is to respect it.  For this agreement, Ruiz first analyzes the word „irreprocible.“ The perfectly irreproachable word comes from the Latin word peccatus, which means „sin,“ and the term „im“ at the beginning of blame is the Latin prefix meaning „without.“ Ruiz describes a sin as all that goes against himself, and therefore to be impeccable with language is to assume the responsibility of one and without judgment against oneself and against the other.  This agreement focuses primarily on the importance of speaking with integrity and carefully choosing the words before saying it out loud.  Here are my favorite excerpts from Don Miguel Ruiz`s chapter on the third chord (in „The Four Agreements“): the third agreement describes how assumptions are made, how this leads to suffering and why individuals should not participate in doing so. If you assume what others think, it can create stress and interpersonal conflict, because the person thinks that his hypothesis is a representation of the truth.  Ruiz believes that one solution to overcome the adoption act is to ask questions and ensure that communication between those involved is clear.  Individuals can avoid misunderstandings, sadness and drama by not taking any assumptions.  His son, Don Jose Ruiz, then released a sequel with his father titled The Fifth Agreement, adding another chord: Ok, finally, we arrive at The Fourth Agreement: Always Do Your Best. In other words,… They will unscrew and oppose these agreements. All right! The second agreement offers readers the opportunity to manage the hurtful treatments of others that they can experience in life.
She argues that it is important to have a strong self-concept and not to have to rely on the opinions of others to be satisfied and satisfied with their self-concept. This agreement also allows readers to understand the idea that each individual has a unique vision of the world that changes his or her own perception and that a person`s actions and beliefs are a projection of his or her personal reality.  Ruiz believes that anger, jealousy, envy and even sadness can subside or dissipate as soon as an individual stops taking things in person. His best-known book, The Four Agreements, was released in 1997 and has sold in the United States about 10 million times and has been translated into 46 languages. The book advocates the personal freedom of convictions and agreements we have made with ourselves and with others, which create use and unhappiness in our lives.  It was broadcast on the television show Oprah.  The four chords are: The book is based on a series of spiritual beliefs, held by Toltec elders, to help readers transform their lives into a new experience of freedom, true happiness and love.  According to the author, everything a man does is based on agreements he has made with himself, with others, with God and with life itself.  In these agreements, we can tell ourselves who they are, how to behave, what is possible and what is impossible.  Some agreements that create individuals may not cause problems, but there are certain arrangements that come from a place of fear and have the power to deplete emotional energy and reduce a person`s self-esteem.
 The book states that these self-limiting agreements cause unnecessary suffering.  Ruiz also believes that to find personal joy, one must get rid of socially imposed and fear-based agreements that can unconsciously influence the individual`s behaviour and thinking.  Another fundamental premise of the book suggests that much of the suffering is created and that most people have the ability to transform themselves and the negative thoughts they have about the situations in their lives.  The author identifies the sources of unhappiness in life and proposes four beneficial agreements that can be concluded with oneself to improve their general state of well-being.