Those distinct substances, which concretes generally either afford, or are made up of, may, without very much inconvenience, be called the elements or principles of them.
He was careful to instruct him in such an affable, kind, and gentle way, that he easily prevailed with him to consider studying, not so much as a duty of obedience to his superiors, but as the way to purchase for himself a most delightsom and invaluable good. In effect, he soon created in Philaretus so strong a passion to acquire knowledge, that what time he could spare from a scholar's task, which his retentive memory made him not find uneasy, he would usually employ so greedily in reading, that his master would sometimes be necessitated to force him out to play, on which, and upon study, he looked, as if their natures were inverted.
The phaenomena afforded by trades, are a part of the history of nature, and therefore may both challenge the naturalist's curiosity and add to his knowledge, Nor will it suffice to justify learned men in the neglect and contempt of this part of natural history, that the men, from whom it must be learned, are illiterate mechanicks... is indeed childish, and too unworthy of a philosopher, to be worthy of an honest answer.