To be or not to be multilingual?’ – this was the question asked by prof. UAM dr hab. Magdalena Wrembel to students of St. Maria Magdalena during a lecture she gave at St. Maria Magdalena High School on March 16, 2023. During the meeting, the students, together with their teacher, tried to characterize multilingualism and reflected on the universality of this phenomenon in the modern world. The listeners learned about the benefits of being able to use more than one language, as well as the challenges that multilingual people have to face. All the information provided by the professor allowed the lecture participants to better understand the process of language acquisition in both children and adults. The lecture was another joint initiative of the Faculty of English and Marynka, organized as part of the cooperation of both institutions.