But in the other voyages, whatever discoveries we meet with are purely accidental, except it be Dampier's voyage to the coasts of New Holland and New Guinea, which was expressly made for discoveries; and in which, if an abler man had been employed in conjunction with Dampier, we cannot doubt that the interior and exterior of those countries would have been much better known than they are at present; because such a person would rather have chosen to have refreshed in the island of New Britain, or some other country not visited before, than at that of Timer, already settled both by the Portuguese and the Dutch.
In all attempts, therefore, of this sort, those men are fittest to be employed who, with competent abilities as seamen, have likewise general capacities, are at least tolerably acquainted with other sciences, and have settled judgments and solid understandings.

These are the men from whom we are to expect the finishing that great work which former circumnavigators have begun; I mean the discovering every part and parcel of the globe, and the carrying to its utmost perfection the admirable and useful science of navigation.
It is, however, a piece of justice due to the memory of these great men, to acknowledge that we are equally encouraged by their examples and guided by their discoveries.

We owe to them the being freed, not only from the errors, but from the doubts and difficulties with which former ages were oppressed; to them we stand indebted for the discovery of the best part of the world, which was entirely unknown to the ancients, particularly some part of the eastern, most of the southern, and all the western hemisphere; from them we have learned that the earth is surrounded by the ocean, and that all the countries under the torrid zone are inhabited, and that, quite contrary to the notions that were formerly entertained, they are very far from being the most sultry climate in the world, those within a few degrees of the tropics, though habitable, being much more hot, for reasons which have been elsewhere explained.

By their voyages, and especially by the observations of Columbus, we have been taught the general motion of the sea, the reason of it, and the cause and difference of currents in particular places, to which we may add the doctrine of tides, which were very imperfectly known, even by the greatest men in former times, whose accounts have been found equally repugnant to reason and experience.
By their observations we have acquired a great knowledge as to the nature and variation of winds, particularly the monsoons, or trade winds, and other periodical winds, of which the ancients had not the least conception; and by these helps we not only have it in our power to proceed much farther in our discoveries, but we are likewise delivered from a multitude of groundless apprehensions, that frightened them from prosecuting discoveries.

We give no credit now to the fables that not only amused antiquity, but even obtained credit within a few generations.
The authority of Pliny will not persuade us that there are any nations without heads, whose eyes and mouths are in their breasts, or that the Arimaspi have only one eye, fixed in their forehead, and that they are perpetually at war with the Griffins, who guard hidden treasures; or that there are nations that have long hairy tales, and grin like monkeys.