Taught by the experience of eighteen years spent amongst the Guaranies, and Abipones, I profess to hold the same opinion, having myself seen most barbarous savages born in the woods, accustomed from their earliest age to superstition, slaughter, and rapine, and naturally dull and stupid as brutes, who, after their removal to the colonies of the Jesuits, by daily instruction and by the example of old converts, became well acquainted with and attached to the divine law. Although the Americans are but slow of understanding, yet when the good sense of the teacher compensates for the stupidity of his pupils, they are successfully converted to civilization and piety, and even instructed in arts of all kinds. If you wish to see, with your own eyes, to what a degree instruction sharpens the wits of the Indians, and enlarges their comprehensions, go and visit the Guarany towns; in all of which you will find Indians well skilled in the making and handling of musical instruments, in painting, sculpture, cabinet-making, working metals of every kind, weaving, architecture, and writing; and some who can construct clocks, bells, gold clasps, &c. according to all the rules of art. Moreover, there were many who printed books, even of a large size, not only in their native tongue, but in the Latin language, with brass types, which they made themselves. They also write books with a pen so artfully, that the most discerning European would swear they were printed. The Bishops, Governours, and other visitants, were astonished at the workmanship of the Indians, which they saw or heard of in the Guarany towns. The Guaranies were instructed in music, and other arts, by the Jesuit Missionaries, Italians, Flemings, and Germans, who found the Indians docile beyond their expectation. Of this, however, I am perfectly certain, that the Indians comprehend what they see sooner and more easily than what they hear, like the rest of mankind, who are all more readily instructed by the eyes than by the ears. If you desire a Guarany to paint or engrave any thing, place a copy before his eyes, and he will imitate it and execute his task with accuracy and elegance. If a pattern be wanting, and the Indian be left to his own devices, he will produce nothing but stupid bungling work, though you may have endeavoured to explain your wishes to him as fully as possible. Neither should you imagine that the Americans are deficient in memory. It was an old custom in the Guarany Reductions to make the chief Indian of the town, or one of the magistrates, repeat the sermon just delivered from the pulpit before the people in the street, or in the court-yard of our house; and they almost all did it with the utmost fidelity, without missing a sentence. Any piece of music which they have either sung or played on the flute, or organ, two or three times from note, becomes so infixed in their memory, that if the music paper were carried away by the wind, they would have no further occasion for it.