First pub. in: Философские науки. 2014. № 5. С. 72-86.
In this paper I discuss the life and key ideas of Christlieb Feldstrauch (1734–1799), who was born in Russia and published in 1790 a philosophical treatise «Observations on Human Mind and Its Relation to World», which was positively reviewed by German thinkers. A quality of this treatise is so high that its author can be considered as one of the most important Russian thinkers of 18th century.