Knowledge is two-fold, and consists not only Posted on May 6, 2017May 6, 2012 by admin “Knowledge is two-fold, and consists not only in an affirmation of what is true, but in the negation of that which is false.” — Charles Caleb Colton Author: Charles Caleb Colton Category: knowledge Tags: knowledge, Charles Caleb Colton Spread the love Related posts: We own almost all our knowledge not That writer does the most who gives There can be no knowledge without emotion. Prices are important not because money is