“The Catholic Church"

“The Catholic Church is an institution I am bound to hold divine, but for unbelievers, here is proof of its divinity, that no merely human institution run with such knavish imbecility would have lasted a fortnight.”

~Hilaire Belloc (source unknown)

"The essence of heresy"

“THE denial of a scheme wholesale is not heresy, and has not the creative power of a heresy. It is of the essence of heresy that it leaves standing a great part of the structure it attacks. On this account it can appeal to believers and continues to affect their lives through deflecting them from their original characters. Wherefore it is said of heresies that “they survive by the truth they retain.”

~Hilaire Belloc: from The Great Heresies.