“Modern art has to be what is called ‘intense.’ it is not easy to define being intense; but, roughly speaking, it means saying only one thing at a time, and saying it wrong.”

“The modern habit of saying "This is my opinion, but I may be wrong" is entirely irrational. If I say that it may be wrong, I say that is not my opinion. The modern habit of saying "Every man has a different philosophy; this is my philosophy and it suits me" – the habit of saying this is mere weak-mindedness. A cosmic philosophy is not constructed to fit a man; a cosmic philosophy is constructed to fit a cosmos. A man can no more possess a private religion than he can possess a private sun and moon.”

“The word 'heresy' not only means no longer being wrong; it practically means being clear-headed and courageous. The word 'orthodoxy' not only no longer means being right; it practically means being wrong.”

“If grass grows and withers, it can only mean that it is part of a greater thing, which is even more real; not that the grass is less real than it looks. St. Thomas (Aquinas) has a really logical right to say, in the words of the modern mystic, A. E.: "I begin by the grass to be bound again to the Lord.”

“This is the only period in all human history when people were proud of being modern. For though to-day is always to-day and the moment is always modern, we are the only men in all history who fell back upon bragging about the mere fact that to-day is not yesterday. I fear that some in the future will explain it by saying that we had precious little else to brag about. For, whatever the medieval faults, they went with one merit. Medieval people never worried about being medieval; and modern people do worry horribly about being modern.”

“We have all forgotten what we really are. All that we call common sense and rationality and practicality and positivism only means that for certain dead levels of our life we forget that we have forgotten. All that we call spirit and art and ecstasy only means that for one awful instant we remember that we forget.”

“There is only one thing that that it requires real courage to say, and that is a truism.”