That the mind of man is never satisfied with the objects immediately before it, but is always breaking away from the present moment, and losing itself in schemes of future felicity; and that we forget the proper use of the time, now in our power, to provide for the enjoyment of that which, perhaps, may never be granted us, has been frequently remarked; and as this practice is a commodious subject of raillery to the gay, and of declamation to the serious, it has been ridiculed with all the pleasantry of wit, and exaggerated with all the amplifications of rhetorick. Every instance, by which its absurdity might appear most flagrant, has been studiously collected; it has been marked with every epithet of contempt, and all the tropes and figures have been called forth against it. Censure is willingly indulged, because it always implies some superiority: men please themselves with imagining that they have made a deeper search, or wider survey, than others, and detected faults and follies, which escape vulgar observation. And the pleasure of wantoning in common topicks is so tempting to a writer, that he cannot easily resign it; a train of sentiments generally received enables him to shine without labour, and to conquer without a contest. It is so easy to laugh at the folly of him who lives only in idea, refuses immediate ease for distant pleasures, and, instead of enjoying the blessings of life, lets life glide away in preparations to enjoy them; it affords such opportunities of triumphant exultation, to exemplify the uncertainty of the human state, to rouse mortals from their dream, and inform them of the silent celerity of time, that we may believe authors willing rather to transmit than examine so advantageous a principle, and more inclined to pursue a track so smooth and so flowery, than attentively to consider whether it leads to truth. This quality of looking-forward into futurity seems the unavoidable condition of a being, whose motions are gradual, and whose life is progressive: as his powers are limited, he must use means for the attainment of his ends, and intend first what he performs last; as by continual advances from his first stage of existence, he is perpetually varying the horizon of his prospects, he must always discover new motives of action, new excitements of fear, and allurements of desire. The end therefore which at present calls forth our efforts, will be found, when it is once gained, to be only one of the means to some remoter end. The natural flights of the human mind are not from pleasure to pleasure, but from hope to hope.