The truth is, that it is quite an error to suppose that absence of definite convictions gives the mind freedom and agility. A man who believes something is ready and witty, because he has all his weapons about him. He can apply his test in an instant. The man engaged in a conflict with a man like Mr. Bernard Shaw may fancy he has ten faces; similarly a man engaged against a brilliant duellist me fancy that the sword of his foe has turned into ten swords in his hand. But this is not really because the man is playing with 10 sorts, it is because he is aiming very straight with one. Moreover, a man with a definite belief always appears bizarre, because he does not change with the world; he has climbed into a fixed star and the earth whizzes below him like a Zoe trope.
GK Chesterton, Heretics