Abstract
On the path from myth to logos Greek culture, which grasped the meaning of this path, formulated the concepts of episteme and theoria, which are connected today with the image of science. They contain many connotations that they partly lost later on . Becoming a term of both ordinary and specialized scientific-philosophical language, theoria preserved also the wider, more general cultural meaning that emphasizes the complexity and contradictoriness of the cognitive process and the problematical character as well as the great value of knowledge in general. Theory, which was first embodied in ancient astronomy, expressed, among other things, the essence of man, which lies in man's mediating position between the heavens and the earth: standing on Earth, he raises his eyes to the heavens