There are the author’s reminiscences about the meetings and communication for many years with academician Nikita Nikolaevich Moiseev (1917–2000) – the scientist, the mathematician, the philosopher, the man of encyclopedic knowledges, foresaw the future. In the own scientific activities N. N. Moiseev proved himself as a scientific leader with broad-minded, empathetic mentor to young scientists, person experiencing problems of science, country and humanity as their own.