The devil can quote Scripture for his purpose; and the text of Scripture which he now most commonly quotes is, “The Kingdom of heaven is within you.”… - G. K. Chesterton

The real trouble with this world of ours is not that it is an unreasonable world, nor even that it is a reasonable one. The commonest kind of trouble is that it is nearly reasonable, but not quite. Life is not an illogicality; yet it is a trap for logicians. It looks just a little more mathematical and regular than it is; its exactitude is obvious, but its inexactitude is hidden; its wildness lies in wait.

Mysticism keeps men sane. As long as you have mystery you have health; when you destroy mystery you create morbidity. The ordinary man has always been sane because the ordinary man has always been a mystic. He has permitted the twilight. He has always had one foot in earth and the other in fairyland. He has always left himself free to doubt his gods; but (unlike the agnostic of to-day) free also to believe in them. He has always cared more for truth than for consistency. If he saw two truths that seemed to contradict each other, he would take the two truths and contradiction along with them. His spiritual sight is stereoscopic, like his physical sight: he sees two different pictures at once and yet sees all the better for that. Thus, he has always believed that there was such a thing as fate, but such a thing as free will also. Thus, he believes that children were indeed the kingdom of heaven, but nevertheless ought to be obedient to the kingdom of earth. He admired youth because it was young and age because it was not. It is exactly this balance of apparent contradictions that has been the whole buoyancy of the healthy man. The whole secret of mysticism is this: that man can understand everything by the help of what he does not understand. The morbid logician seeks to make everything lucid, and succeeds in making everything mysterious. The mystic allows one thing to be mysterious, and everything else becomes lucid.

Modesty has moved from the organ of ambition. Modesty has settled upon the organ of conviction where it was never meant to be. A man was meant to be doubtful about himself, but undoubting about the truth: this has been exactly reversed. Nowadays the part of a man that a man does assert is exactly the part he ought not to assert-himself. The part he doubts is exactly the part he ought not to doubt - the Divine Reason... The old humility was a spur that prevented a man from stopping: not a nail in his boot that prevented him from going on. For the old humility made a man doubtful about his efforts, which might make him work harder. But the new humility makes a man doubtful about his aims, which will make him stop working altogether.