There are four chief obstacles in grasping truth, which hinder every man, however learned, and scarcely allow any one to win a clear title to wisdom, namely, submission to faulty and unworthy authority, influence of custom, popular prejudice, and concealment of our own ignorance with a show of seeming wisdom.
Roger Bacon Quotes
There are in fact four very significant stumblingblocks in the way of grasping the truth, which hinder every man however learned, and scarcely allow anyone to win a clear title to wisdom, namely, the example of weak and unworthy authority, longstanding custom, the feeling of the ignorant crowd, and the hiding of our own ignorance […]