We often say and believe that most people would not change a thing if they get to relive the past because it is truly blessed to be given the opportunities to learn the lessons of life. The harder the lessons, the more benefits it ultimately bestows, if one focuses on its positive aspects. But I believe that such a statement is wrong because mental disorders exist. After all, we do not know how to take care of ourselves. Professor Martin Seligman, founder of positive psychology during his Tedtalk2004, spoke about the eleven reasons to become optimistic. Seligman shared articles and organizations that describe how we can be happier by changing our mindset. Seligman explained the current state of psychology, both the good and the bad. The professor also clarified the misconception many people have about psychology. The mistake is that psychology is just one of the tools for finding problems with people instead of restoring them. Seligman stipulating by answering the question, "What was good about psychology." He talked about the $30 billion investment NIMH made, about working in the disease model, about what you mean by psychology -- is that, 60 years ago, none of the disorders were treatable; it was entirely smoke and mirrors. Within the scope of modern science, Seligman stated that 14 of the diseases are treatable while; two are curable. That is an amazing discovery" (Seligman, 2004). Professor Seligman stated that some of the goals of a modern psychologist are to understand the causality of mental illnesses and treat them. Throughout the science of mental treatment, professor Seligman explained how far psychology has come within the last 50 years "to invent drugs and psychological treatment" getting closer to professor Seligman's ending speech, he talked about the three costs of the disease model. The first one is moral; the second one is psychologists have forgotten that people and proving people's lives. The last one is the rush psychologist takes to treat people. Professor Seligman explained that many psychologists make the mistake of rushing when finding a solution to repair the damage. Seligman and his team, Nancy Etcoff, Dan Gilbert, and Mike Csikszentmihalyi's main goal are to develop interventions that will make people happier. Seligman encourages other psychologists to focus on human strength, building, and making ordinary people's lives more meaningful and fulfilling. In the Ted talk, professor Seligman asked the audience what extent the pursuit of pleasure, positive emotion, pleasant life, engagement, time stopping for you, and the meaning to contribute to growth satisfaction? The professor concluded that the pursuit of pleasure has almost no contribution to life satisfaction. The professor explained how mental disorders are diagnosed. Seligman's speech during his Tedtalk 2004 sums up everything in this topic. Throughout his speech, he explained personality, the effect of life choices have on one's physical and mental health. He elaborated on the science of happiness and described the strategies for becoming happy, more beautiful, and conscientious. Professor Seligman explained the psychopathology basis, the pattern of mental symptoms, which can cause problems in life. Everything professor Seligman shared during his Tedtalk 2004 are all related and relevant to the course. Every single one of us, in a way, wants to be happy; we yearn for it because we assume it is essential. Many people believe pursuing pleasure will bring happiness. On the contrary, professor Seligman argues that pleasure does not bring happiness. In my personal and professional life, I have come to an understanding to cherish what I have and treat other people with love and respect. Understanding people and building them rather than labeling them. When people have dysfunctional thoughts and feelings, they tend to misbehave, talk, and act a certain way that contradicts the norm. However, I have learned that to be part of the solution is better: by encouraging people to be happy rather than making them feel worse than they already are. As Campbell and Twenge stated that "personality disorders are extreme manifestations of personality and only professionals should diagnose personality disorders." (Campbell, and Twenge, 2017). I will encourage my friends at work to strive to seek a healthy living. Staying active in a social way is essential, as well as making daily plans. It is crucial for us to practices happiness, showing gratitude, and being optimistic can bring joy. It is also important to increase social confidence, eating more fruits and vegetables, and exercise regularly, pampering yourself. Coon, Dennis; Mitterer, and John stated that happier people tend to find humor in disappointments. They look at setbacks as challenges. They are strengthened by losses" (Coon, Dennis; Mitterer and John 2014).