"The Appeal of the Twentieth Century" is a speech addressed to young men in the context of the early 20th century. The author of this influential work, David Starr Jordan, candidly expresses his thoughts about the future, calling on young people to act and commit to the cause of progress and development. His speech was aimed at raising a generation ready for changes in society and science, emphasizing the importance of education, courage and faith in one's own strength. "The Call of the Twentieth Century" remains relevant today, reminding us of the responsibility of each of us to future generations and the world in general.