Every man carries about him a touchstone, if he will make use of it, to distinguish substantial gold from superficial glitterings, truth from appearances. And indeed the use and benefit of this touchstone, which is natural reason, is spoiled and lost only by assuming prejudices, overweening presumption, and narrowing our minds.
John LockeI am sure, zeal or love for truth can never permit falsehood to be used in the defense of it.
John LockeIt is one thing to show a man that he is in an error, and another to put him in possession of the truth.
John Locke