"Philosophical Dictionary" by Sylvester Gogotsky, published in 1876, is the first full-fledged philosophical dictionary in Russia. It turns out, in essence, the result of Gogotsky's colossal work on the philosophical encyclopedia ("Philosophical Lexicon"), which has absorbed its very essence and clearly shows how philosophical science is changing throughout the 19th century. Dictionaries do not become obsolete. Without Gogotsky's "Philosophical Dictionary," Russian philosophy will never be complete and independent among other world philosophies.