The diploma thesis deals with the development of Miroslav Tyrš’s aesthetic opinions and his influence on Czech culture in the second half of the 19th century. Tyrš was one of the founders of the Sokol movement, but he was also a philosopher, aesthetician, art historian and art critic, and all these aspects are observable in his work. This thesis endeavours to map Tyrš’s literary work and the development of his theoretical studies of art. All of his essays are analysed and commented upon in ten chronological chapters. Each is focused on a special issue that interested Tyrš during that particular period. After the biographical part, the second part introduces several texts from other theoreticians and aestheticians who discuss Tyrš’s intellectual legacy. And, finally, we will demonstrate the influence that Tyrš has had on our culture with various examples, inside and outside of the Sokol movement, that we can still trace to the present day.