QUOTE : That is what is meant by the proposition omne ens est verum (everything that is, is true)—though we have almost ceased to understand it—and by the complementary proposition that being and truth are interchangeable concepts. (What does truth mean, where things are concerned, the truth of things? “A thing is true” means: it is known and knowable, known to the absolute spirit, knowable to the spirit that is not absolute.