"世界中が舞台であり、全ての男女は単なる役者です。彼らには出口と入口があり、一人一人がその時々で多くの役割を演じます。"

Simplified Meaning:

Think of life like a big play in a theater. Everyone, including you, is an actor with different roles to play. Sometimes you enter the stage (like when you start a new phase of life) and sometimes you exit (like when you finish something or move on). Throughout your life, you'll act differently in various situations – as a student, a friend, a worker, or a parent. Each of these roles is like a part in a play, and you perform them at different times. For example, consider a teacher. In the classroom, they play the role of an educator, guiding students and sharing knowledge. At home, they might switch roles to a parent, caring for their children and managing a household. Just like actors, people perform different roles based on where they are and who they’re with. Understanding this can help you adapt to new situations and appreciate the different parts others play in their lives.