How could one separate the study of what words and sentences in natural languages mean from the study of the way agents use languages? What serves as a background for my interest in this thesis is the difference in opinion between two ways of approaching the study of meaning in language and the agents involved in creating this meaning. As there is no clear picture of how language helps us in sharing thoughts, there is no clear picture of what the nature of language is. My main interest seen against this background lies with one American philosopher particularly influential in the discipline of the philosophy of language in the latter half of the 20th century: Donald Davidson (1917-2003). While his legacy in truth-conditional semantics is co...