قد يعيش الإنسان طويلاً ثم يموت أخيراً جاهلاً بكثير من الحقائق التي كان عقله قادراً على إدراكها، وإدراكها بيقين.

“A man may live long, and die at last in ignorance of many truths, which his mind was capable of knowing, and that with certainty.”John Locke — Philosophical Works: Preliminary discourse by the editor. On the conduct of the understanding. An essay concerning human understanding (1872)