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It is another very good argument to prove that by labor and exercise you have shaken off all stupidity and sluggishness of temper, and that you are arrived at a perfection of virtue, if for the future your resolutions be more firm and your application more intense than they were when you first set out. This appears true, if you but observe its contrary; for it is a very bad sign if, after a small time spent in trial, you find many and repeated intermissions, or your affections yielding or cool in the pursuit. This may be illustrated by what is observable in the growth of a cane. At first it appears above ground with a full and pleasing sprout, which by little and little, taper-wise, by a continued and equal distribution of matter, rises to a very great height. Towards the root you may observe that there are formed certain steps and joints, which are at a considerable distance from one another, because (there) the juice is plentiful and strong. But toward the top the nutrimentive particles vibrate and palpitate, as if they were quite spent with the length of their journey, and thereupon, you see, they form themselves many small, weak, and tender joints, as so many supports and breathing-places. So it happens with those that study philosophy: at first setting out they take long steps and make great advances; but if, after some attempts, they perceive not in themselves any alteration for the better, but meet with frequent checks and avocations the further they go, ordinarily they faint, make any excuses to be off from their engagement, despond of ever going through with it, and thereupon proceed no farther. But, on the contrary, he that is winged with desire flies at the proposed advantage, and by a stout and vigorous pursuit cuts off all pretences of delay from crowding in upon him or hindering his journey.
