50 years in the Landau Institute environment

It is impossible to review all the fundamental works of Landau Institute, which made important contribution to physics in general. Here I will discuss only a part of these works, only those which directly influence my own work during 50 years (1968-2018). Khalatnikov created the unique Institute, where practically all important areas of theoretical physics have been represented, opening broad possibilities for collaboration. The multidisciplinary environment of the Landau Institute was the main element of inspiration.