"I should think you might have a light head with such living," added James, "and your body will be as light before many weeks I prophesy." "I will risk it. I am on a study now that requires a clear head, and I am determined to master it." "What is that?" "It is Cocker's Arithmetic." "Begin to wish you knew something about arithmetic by this time," added James sarcastically. "Making up for misspent time, I see!" Here was a fling at Benjamin's dislike of arithmetic when he was sent to school. We have seen that he accomplished nothing in figures, either at the public school or when he was under Mr. Brownwell's tuition. Liking some other studies better, he neglected this, and now, as is generally the case, he regretted his error, and applied himself to acquire that which he might have acquired before. It was a difficult task for him, but his patience and perseverance, together with his economy of time, and temperance in eating and drinking, enabled him to accomplish his object. Then he read a work on Navigation, and made himself particularly familiar with the geometry which it contained. "Locke on the Understanding," and "The Art of Thinking," were two other works that he read closely while he was living on a vegetable diet. All these works were difficult to be mastered by a boy not yet fourteen years of age. Yet he was not discouraged by this fact; it rather seemed to arouse him to greater efforts. "You calculate time as closely as a miser does his money, Ben," said James. "As little as I have for myself requires that I should calculate closely," was his reply. "Time is money to you, or else you would allow me a little more to myself; and it is more than money to me." "How so?" inquired James. "It enables me to acquire knowledge, which I cannot buy with money. Unless I was saving of my time, I should not be able to read or study at all, having to work so constantly." Perhaps, at this time, Benjamin laid the foundation for that economy which distinguished him in later life, and about which he often wrote. Among his wise sayings touching this subject are the following:-- "If you would be wealthy, think of saving, as well as of getting." "What maintains one vice would bring up two children." "Many a little makes a mickle." "A small leak will sink a ship." "At a great pennyworth pause awhile." "Silks and satins, scarlet and velvets, put out the kitchen fire." "Always taking out of the meal-tub, and never putting in, soon comes to the bottom." "For age and want save while you may,-- No morning sun lasts a whole day." "It is easier to build two chimneys than to keep one in fuel." "A penny saved is a penny earned." "A penny saved is twopence clear; A pin a day is a groat a year." "He that wastes idly a groat's worth of his time per day, one day with another, wastes the privilege of using one hundred pounds each day." To a young tradesman he wrote, in the year 1748:--