Complex sentence: These works signify that he did not restrict himself to be the foremost moderniser of the Hindi language, literature and thought but also involved with scientific temper building by translating and updating works of science and history.
Split into simpler sentences: These works signify that he did not restrict himself to be the foremost moderniser of the Hindi language, literature and thought. He was involved with scientific temper-building by translating and updating works of science and history.