By which definition it is evident that we are not to account as any part thereof that original knowledge called experience, in which consisteth prudence; because it is not attained by reasoning, but found as well in brute beasts as in man; and is but a memory of successions of events in times past, wherein the omission of every little circumstance altering the effect, frustrateth the expectation of the most prudent: whereas nothing is produced by reasoning aright, but general, eternal, and immutable truth.

Nor are we therefore to give that name to any false conclusions: for he that reasoneth aright in words he understandeth, can never conclude an error:

Nor to that which any man knows by supernatural revelation; because it is not acquired by reasoning:

Nor that which is gotten by reasoning from the authority of books; because it is not by reasoning from the cause to the effect, nor from the effect to the cause; and is not knowledge but faith.