This book we dedicate to memory of Джордано of Bruno - great philosopher, poet, scientist of Renaissance age. In the days of, when an immutable dogma was that stars are fastened on the vault of heaven, and Earth is a center of immobile lifeless universe, Bruno talked about Single, Divine Beginning, that inspires, fills with life all in endless, always transformed Universe, about the numberless living worlds.In a book presented two philosophical dialogues of Джордано of Bruno - "About Reason, Beginning and Single" and "About endlessness, universe and worlds", - the basic ideas of his philosophy sound in that.Collection is completed by the labour "About heroic enthusiasm", sanctified to the way of Enthusiast, authentic hero, and love to Truth as motive force of philosophical search and vital exploit of Bruno.In the format of a4.pdf is stored publishing layout.