EN
The paper deals with the rise of modern thought in connection with the origins of modern mathematical science. Leibniz, one of the founding fathers of modern science and the language of science (characteristica universalis), scientific questions and modern knowledge as such, is an extraordinary thinker among others because of his comprehensiveness. He aimed at a new synthesis of science, which should first of all maintain the unity of science, philosophy and morals (or ethics). By the help of the notions such as 'cleverness', 'brightness', 'calculating and considering reason' Leibniz wanted to stress his conviction, that the topical questions of his time could be resolved only in dependence on creative thinking and mainly moral action.