Everyone has their own weaknesses and pains. According to relevant public information, "I have everything that others have." This is an ancient Roman saying quoted by Marx many times. It shows that as a youth, student, husband, parent, friend, resident, scholar, elder, Thinkers, in short, Marx and Engels as ordinary people. This book brings together Marx and Engels' famous sayings and extremely refined philosophical discussions on various aspects of their outlook on life. It is divided into two parts: "knowing yourself" and "people and society", integrating self-understanding, human nature and development, people and family, and friendship. It covers seven topics including trust, social outlook, economic life, and scientific education. Most of the quotations are unfamiliar to ordinary people. The editor gives a brief introduction to each topic, annotates some characters and terms, and inserts some precious pictures. This book takes a straight-up perspective and helps us understand Marx and Engels correctly. Due to historical reasons, their images (especially Marx) have been surrounded by a halo for a long time and need to be looked up at. For the new generation, Marx and Engels seem quite far away; while for the older generation, they feel as if they are already very familiar with them. The thoughts of these two great men in life will make the new generation feel a refreshing light of reason, and enable the older generation to have a deeper understanding of the people they admire.