لا تُنال المعرفةُ إلا من الحقيقةِ المرئيّةِ واليقينيّة، فالخطأُ ليس عيباً في معرفتنا، بل هو زلّةٌ في حكمنا، حين نُسلّم بما ليس بصحيح.

“Knowledge being to be had only of visible and certain truth, error is not a fault of our knowledge, but a mistake of our judgment, giving assent to that which is not true.”John Locke — An Essay Concerning Human Understanding: An analysis of Mr. Locke's Doctrine of ideas .... A defense of Mr. Locke's Opinion concerning personal identity .... A treatise on the conduct of the understanding. Some thoughts concerning reading and study for a gentleman. Elements of natural philosophy. A new method of a common place book. Extracted from the author's works. With a life of the author (1825)