Against the instillations of this frigid opiate, the heart should be secured by all the considerations which once concurred to kindle the ardour of enterprise. Whatever motive first incited action, has still greater force to stimulate perseverance; since he that might have lain still at first in blameless obscurity, cannot afterwards desist but with infamy and reproach. He, whom a doubtful promise of distant good could encourage to set difficulties at defiance, ought not to remit his vigour, when he has almost obtained his recompense. To faint or loiter, when only the last efforts are required, is to steer the ship through tempests, and abandon it to the winds in sight of land; it is to break the ground and scatter the seed, and at last to neglect the harvest. The masters of rhetorick direct, that the most forcible arguments be produced in the latter part of an oration, lest they should be effaced or perplexed by supervenient images. This precept may be justly extended to the series of life: nothing is ended with honour, which does not conclude better than it began. It is not sufficient to maintain the first vigour; for excellence loses its effect upon the mind by custom, as light after a time ceases to dazzle. Admiration must be continued by that novelty which first produced it, and how much soever is given, there must always be reason to imagine that more remains. We not only are most sensible of the last impressions, but such is the unwillingness of mankind to admit transcendant merit, that, though it be difficult to obliterate the reproach of miscarriages by any subsequent achievement, however illustrious, yet the reputation raised by a long train of success may be finally ruined by a single failure; for weakness or errour will be always remembered by that malice and envy which it gratifies. For the prevention of that disgrace, which lassitude and negligence may bring at last upon the greatest performances, it is necessary to proportion carefully our labour to our strength. If the design comprises many parts, equally essential, and therefore not to be separated, the only time for caution is before we engage; the powers of the mind must be then impartially estimated, and it must be remembered that, not to complete the plan, is not to have begun it; and that nothing is done, while any thing is omitted. But, if the task consists in the repetition of single acts, no one of which derives its efficacy from the rest, it may be attempted with less scruple, because there is always opportunity to retreat with honour. The danger is only, lest we expect from the world the indulgence with which most are disposed to treat themselves; and in the hour of listlessness imagine, that the diligence of one day will atone for the idleness of another, and that applause begun by approbation will be continued by habit.