This article includes a few passages from the History of Computer Science relating to the events of the middle of the last century. The first part of this article contains a short biography of Norbert Wiener, who is considered to be one of the fathers of modern computer science. This part pays particular attention to Norbert Wiener’s visit to Moscow in the summer of 1960. The other parts of the article focus on life and work of Aleksey Lyapunov, Leonid Kantorovich and Andrey Ershov. The outstanding professional achievements of these Russian scientists, as well as their moral perfection, can set an example for modern students and young professionals.