Some persons have contended that mathematics ought to be taught by making the illustrations obvious to the senses. Nothing can be more absurd or injurious: it ought to be our never-ceasing effort to make people think, not feel.
Samuel Taylor ColeridgeThe curiosity of an honorable mind willingly rests there, where the love of truth does not urge it farther onward, and the love of its neighbor bids it stop; in other words, it willingly stops at the point where the interests of truth do not beckon it onward, and charity cries, Halt!
Samuel Taylor Coleridge