6. But leaving this immense sea of peoples and customs, let us return to our natives of these islands, who, besides having been exceedingly barbarous, living without a ruler, and in a confused monarchy, [111] have the vices of the islanders; for they are fickle, false, and mendacious, and [that] by the special influence and dominion which the moon exercises upon all the islands, isthmuses, and peninsulas [Chersonesos], of which much will be found in the Theatrum vitæ humanæ of Laurencio Beyerlinch. [112] 7. The temperament of these Indians, as is proved by their physiognomy, is cold and humid, because of the great influence of the moon. They have but little or no difference among themselves in their temperament, as was remarked by a learned doctor who has had considerable experience in these islands, namely, Doctor Blas Nuñez de Prado. [He observed] that there was no difference, but a great similarity, in the humors of those who had been treated, and a fine natural docility in responding to the medicine; in whatever remedy it was applied to them. For they have not the great rebelliousness and changeableness of the Europeans, because of the infinite combinations made in them by the four humors. The cause of this is the similarity and lack of variety in the food that they use and which their ancestors used, which go to make up a nature different in its root from that of the Europeans, but yet very similar. [113] 8. This disposition and influence makes them fickle, malicious, untrustworthy, dull, and lazy; [114] fond of traveling by river, sea, and lake; fond of fishing, and ichthyophagous [115]--that is, they sustain themselves best on fish; they have little courage, on account of their cold nature, and are not disposed to work. [116] Besides this they have other qualities and vices, of which I do not know the cause, and I do not believe that I can easily know them. [117] I shall mention some of them. [118]