The flesh does not by its own virtue purify, but is purified by virtue of the Word by which it was assumed, when 'the Word became flesh and dwelt among us' (Jn. 1:14).
He who does little, but in a state to which God calls him, does more than he who labors much, but in a state which he has thoughtlessly chosen: a cripple limping in the right way is better than a racer out of it.
Science is about finding ever better approximations rather than pretending you have already found ultimate truth.
A casual stroll through the lunatic asylum shows that faith does not prove anything.
A proposition of geometry does not compete with life; and a proposition of geometry is a fair and luminous parallel for a work of art. Both are reasonable, both untrue to the crude fact; both inhere in nature, neither represents it.
It is one thing to describe an interview with a gorgon or a griffin, a creature who does not exist. It is another thing to discover that the rhinoceros does exist and then take pleasure in the fact that he looks as if he didn't.