The same distinction is made, by the common suffrage, between profusion and avarice, and, perhaps, between many other opposite vices; and, as I have found reason to pay great regard to the voice of the people, in cases where knowledge has been forced upon them by experience, without long deductions or deep researches, I am inclined to believe that this distribution of respect is not without some agreement with the nature of things; and that in the faults, which are thus invested with extraordinary privileges, there are generally some latent principles of merit, some possibilities of future virtue, which may, by degrees, break from obstruction, and by time and opportunity be brought into act. It may be laid down as an axiom, that it is more easy to take away superfluities than to supply defects; and, therefore, he that is culpable, because he has passed the middle point of virtue, is always accounted a fairer object of hope, than he who fails by falling short. The one has all that perfection requires, and more, but the excess may be easily retrenched; the other wants the qualities requisite to excellence, and who can tell how he shall obtain them? We are certain that the horse may be taught to keep pace with his fellows, whose fault is that he leaves them behind. We know that a few strokes of the axe will lop a cedar; but what arts of cultivation can elevate a shrub? To walk with circumspection and steadiness in the right path, at an equal distance between the extremes of errour, ought to be the constant endeavour of every reasonable being; nor can I think those teachers of moral wisdom much to be honoured as benefactors to mankind, who are always enlarging upon the difficulty of our duties, and providing rather excuses for vice, than incentives to virtue. But, since to most it will happen often, and to all sometimes, that there will be a deviation towards one side or the other, we ought always to employ our vigilance, with most attention, on that enemy from which there is the greatest danger, and to stray, if we must stray, towards those parts from whence we may quickly and easily return. Among other opposite qualities of the mind, which may become dangerous, though in different degrees, I have often had occasion to consider the contrary effects of presumption and despondency; of heady confidence, which promises victory without contest, and heartless pusillanimity, which shrinks back from the thought of great undertakings, confounds difficulty with impossibility, and considers all advancement towards any new attainment as irreversibly prohibited. Presumption will be easily corrected. Every experiment will teach caution, and miscarriages will hourly show, that attempts are not always rewarded with success. The most precipitate ardour will, in time, be taught the necessity of methodical gradation and preparatory measures; and the most daring confidence be convinced, that neither merit nor abilities can command events.