Ignorance is mere privation by which nothing can be produced: it is a vacuity in which the soul sits motionless and torpid for want of attraction: and, without knowing why, we always rejoice when we learn, and grieve when we forget.
Samuel JohnsonSo many objections may be made to everything, that nothing can overcome them but the necessity of doing something.
Samuel JohnsonVulgar and inactive minds confound familiarity with knowledge, and conceive themselves informed of the whole nature of things, when they are shown their form or told their use.
Samuel Johnson