This thesis is one of the first works in the Czech language dealing with the personality and work of Marcus Cornelius Fronto, Roman rhetor of 2. century A. D. and teacher of Marcus Aurelius. After the palimpsest with the correspondence of Fronto was found in early 19th century, the reputation of this man suffered greatly. The man had been seen for many decades as superficial and flat archaisator, whose letters have no or only very little value for us. The aim of this tesis is to examinate the most problematical questions connected with Fronto, firstly his attitude to philosophy and the opinion, that archaism is the main and ubiquitous characteristic of his style. This theoretical treatise is accompanied with translation of several selected texts.