The article written by the son and grandson of Russian psychologist A.N. Leontiev reflects not only his great and varied scientific and organizational services to the domestic psychological science, but also paints a vivid picture of Alexei Leontiev as a person.

In contrast to the previous quite formal biographical articles about this great scientist, this paper lively and vividly describes what actually was the life and work of A. Leontiev. His biography details allow to imagine the situation in this country, in the time when he had to study, work and create.

Talking about personal traits of Alexey Leontiev, the authors point out that the scholar never engaged himself in delegating powers or acting according to the boss’s instructions. He constantly sought from the authorities healthy decisions for psychology. His authority in power was so great that he was able to do almost everything that he sought to do. A.N. Leontiev did not take any important decision without having a council with the people around him. In his collaboration with Lev Vygotsky, almost all decisions were taken together.

The authors openly, with gentle humor are writing of the early years of the future professor, about an uneasy scientific career, a creative, educational and administrative activity in later years. Their story gives an idea of Alexei Leontiev, and as a brilliant scientist, and as a highly respectable, vulnerable, very emotional person, and a very nice man.