Because of the breadth of the subject it is impossible to cover all the contemporary trends in philosophy of the twentieth century in this essay. Indeed, there has been a voluminous output of books and-ideas in the last seventy years. This essay, however, focuses attention on the philosophical trends of the second half of the twentieth century, or the last twenty years, four of which may be cited here: 1.) The Death of Godl which is mainly philosophical, despite its theological undertones; 2.) Herbert Marcuse's socio-political theory; 3.) Structuralism, the direct antithesis of Existentialism; and 4.) Jacques Monod's theory of chance and necessity.