Wise men know more of his essence than do the ignorant, and angels know more than either
 Bertrand Russell, A History of Western Philosophy (1945). copy citation

Context

“Some think this unnecessary, since the existence of God (they say) is self-evident. If we knew God’s essence, this would be true, since (as is proved later) in God, essence and existence are one. But we do not know His essence, except very imperfectly. Wise men know more of his essence than do the ignorant, and angels know more than either; but no creature knows enough of it to be able to deduce God’s existence from His essence. On this ground, the ontological argument is rejected. It is important to remember that religious truth which can be proved can also be known by faith.” source