Let every book-worm, when in any fragrant, scarce old tome, he discovers a sentence, a story, an illustration, that does his heart good, hasten to give it the widest circulation that newspapers and magazines, penny and halfpenny, can afford.
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.