When we have tried to demonstrate to them some abstract truth, a mystery, a catholic dogma, some philosophical thesis, with the greatest simplicity, clearness, and precision, we have observed that the attention of the Indian, excited and sustained at the beginning, gradually diminished, his eyes wandered, his distraction was manifest. Giving another turn and another form to the exposition, we have succeeded in awakening those sleepy or tired minds, but always for only a few moments. By one example we obtain more than by the most exact dissertations, and by the most clear explanations; for their childish minds, their excessively acute sensibility needs something palpable to bring some light to the darkness of their understandings. We have observed that phenomenon also in the rude as well as the instructed Indians who had learned to reason by logic, and have cultivated the mind by study as far as their mental strengths can go. It must be inferred then that the Filipino Indian is a grown-up child. As a child he cannot go beyond the elemental in the sciences, for his most limited understanding cannot mount in its flight to the heights of the metaphysical. Examples, similes, and metaphors are the indirect means to make him understand the intangible, the spiritual, and the abstract. There can be no luminous philosophical dissertations, or brilliant theories, or abstruse problems, but examples, many examples to make him perceive the truth and the essence of things, causing him to touch, feel, and perceive, with eyes, ears, touch, and the other bodily senses. There have not been lacking those who have attributed the incapacity and insufficiency of the Indians to intellectual laziness which corresponds to the laziness peculiar to an equatorial country, where the burning rays of fiery sun enervates the physical and intellectual forces. We neither affirm nor deny this, since it might well happen that the Indians possess, like children, in the beginning in potentiality intellectual faculties in their germ equal and even superior to those of the white race, but we incline to the belief that the Indian of pure blood can never reach in scientific culture to the level of the European. If he ever attains anything in the field of science, it must be because another blood inoculates in his own blood the divine breath of wisdom, and then he will be able to advance somewhat when the cross whitens his olive-colored face, has lowered his prominent cheek-bones, and elevated his flat nose a trifle. Until that time comes, the Indian will always be a grown-up child, as simple, as ignorant, and as credulous as a child, but with all the passions, vices, and defects of the adult.