Belarusian economic scientist, geologist, geographer, statistician, public and state leaders. Academician of two sciences - economics and geology.It was he, among others, and has been subjected to one of the harshest critic of the scientific activity of the orthodox Marxist Agrarians, and after he was barely able to survive (twice sentenced to death), he changed his academic specialization, and instead of economics began to study geology. Therefore, a large circle of contemporaries, he is known more as a scientist, geologist, founder of a new science - paleapatamalogii (the science that studies the origins of relief in Europe, formed as a result of recent glacial deposits).