It is observable, that, either by nature or by habit, our faculties are fitted to images of a certain extent, to which we adjust great things by division, and little things by accumulation. Of extensive surfaces we can only take a survey, as the parts succeed one another; and atoms we cannot perceive till they are united into masses. Thus we break the vast periods of time into centuries and years; and thus, if we would know the amount of moments, we must agglomerate them into days and weeks. The proverbial oracles of our parsimonious ancestors have informed us, that the fatal waste of fortune is by small expenses, by the profusion of sums too little singly to alarm our caution, and which we never suffer ourselves to consider together. Of the same kind is the prodigality of life; he that hopes to look back hereafter with satisfaction upon past years, must learn to know the present value of single minutes, and endeavour to let no particle of time fall useless to the ground. It is usual for those who are advised to the attainment of any new qualification, to look upon themselves as required to change the general course of their conduct, to dismiss business, and exclude pleasure, and to devote their days and nights to a particular attention. But all common degrees of excellence are attainable at a lower price; he that should steadily and resolutely assign to any science or language those interstitial vacancies which intervene in the most crowded variety of diversion or employment, would find every day new irradiations of knowledge, and discover how much more is to be hoped from frequency and perseverance, than from violent efforts and sudden desires; efforts which are soon remitted when they encounter difficulty, and desires, which, if they are indulged too often, will shake off the authority of reason, and range capriciously from one object to another. The disposition to defer every important design to a time of leisure, and a state of settled uniformity, proceeds generally from a false estimate of the human powers. If we except those gigantic and stupendous intelligences who are said to grasp a system by intuition, and bound forward from one series of conclusions to another, without regular steps through intermediate propositions, the most successful students make their advances in knowledge by short flights, between each of which the mind may lie at rest. For every single act of progression a short time is sufficient; and it is only necessary, that whenever that time is afforded, it be well employed.