Have faith in your heart. Time has good and evil. Some people will choose the menu, others will choose evil, and anything is possible. Loneliness, some cross-border classic books, the complexity of society far exceeds that of campus. You will meet all kinds of people, all kinds of values, all kinds of ideas, and sometimes your understanding is extremely fierce. People who read more books and look at problems from multiple perspectives can learn more. Go out and see the beautiful world more, broaden your horizons and experience life.