'Identity in concrete reality determines identity of thought, and not vice versa. It can further be deduced that every truth, even if it is universal, and even if it can be expressed by an abstract formula of a mathematical kind (for the sake of the theoreticians), owes its effectiveness to its being expressed in the language appropriate to specific concrete situations. If it cannot be expressed in such specific terms, it is a byzantine and scholastic abstraction, good only for phrase-mongers to toy with.'
Antonio Gramsci, 'Against Byzantinism', 1932