Populorum Progressio, written in 1967, Pope Paul VI mainly focuses on the idea of the development and progress of people, which has become a deep concern to the Church. With the increase of hunger, poverty, endemic disease, and ignorance of the people, Paul requires that all men should explore this serious problem. Populorum Progrssio is divided into two main parts: man’s complete development and the common development of mankind. Paul focused on a variety of Catholic teachings which relate to the moral areas. One of the areas that Paul focuses on is solidarity. Solidarity is one of the principles of social justice we have discussed in class, which is defined as that we are one family and to look at all people as neighbors, not as enemies. Paul encourages the rich to stand in solidarity with those who are impoverished. Solidarity involves acknowledging the sufferings of our neighbors and doing whatever there is to minimize their difficulties. Paul suggests that nations should incorporate effective economic structures that will address the needs of the impoverished. This principle of morality of solidarity is still applied in our daily lives right now. Even though the idea of solidarity should be applied in our world today, we are faced with a huge gap between the rich and the poor. In fact, it might be correct to say that the gap between the rich and the poor has gotten greater since the time of Paul. With the corporate globalization and economic structure, it is almost impossible to find our teachings of solidarity in our lives. It will take time for this gap to decrease and our economic system to change, but it is important for us keep this teaching of solidarity in our daily lives. I believe that everyone, including myself can help and contribute to the impoverished by simple actions, such as donating can food, used clothes, or attending community service. It