A modern dictionary of Catholic terms, both common and obscure. Find accurate definitions of words and phrases.
Being. In philosophy ens is the common denominator of all reality, and is variously classified according to the different kinds of reality known to the human mind. Thus ens a se is being from itself, or the uncaused Being who is God; ens ab alio is being from another, namely produced or caused being or creature; ens in se is being in itself, and also ens per se which is being through its own nature or being in an unqualified sense, and in both cases is substance; ens entis is being of being, which means that it cannot have existence in itself but only in a substance, hence an accident; ens rationis is a "being" or creation of reason hence a purely logical or conceptual being or idea of something that does not really exist outside the mind; and ens ut sic is being as such, apart from its manifold and varied forms of existence, and is the object of metaphysics or the philosophy of being. (Etym. Latin ens being, a being, something having existence.)
All items in this dictionary are from Fr. John Hardon's Modern Catholic Dictionary, © Eternal Life. Used with permission.