THREE:The Roman reformers were satisfied to call themselves Stoics; and, in reviewing the Stoic system, we saw to what an extent they welcomed and developed some of its fundamental180 thoughts. But we have now to add that the current which bore them on had its source deeper down than the elaborate combinations of Zeno and Chrysippus, and entered into the composition of every other system that acted on the Roman intellect simultaneously with theirs. Thus whatever forces co-operated with Stoicism had the effect not of complicating but of simplifying its tendencies, by bringing into exclusive prominence the original impulse whence they sprang, which was the idea of Natural Law. Hence the form ultimately assumed by Roman thought was a philosophy of Nature, sometimes appearing more under a Stoic, and sometimes more under a Cynic guise. Everything in Roman poetry that is not copied from Greek models or inspired by Italian passion��in other words, its didactic, descriptive, and satiric elements��may be traced to this philosophy. Doubtless the inculcation of useful arts, the delight in beautiful scenery, the praises of rustic simplicity, the fierce protests against vice under all its forms, and the celebration of an imperial destiny, which form the staple of Rome��s national literature, spring from her own deepest life; but the quickening power of Greek thought was needed to develope them into articulate expression.Halley's quadrant was constructed and made known by him to the Philosophical Society, in 1731, though Thomas Godfrey, a glazier, of Philadelphia, is said to have made a similar instrument a year before. As early, however, as 1727 Newton had described such an instrument to Halley, that is, a very little time before his death. This invaluable instrument has since been improved, first into a sextant, and ultimately into a complete circle. In 1758 appeared John Dollond's corrections of Newton's views of the dispersion of refracted light, and in the following year his achromatic telescope, based on his accurate discoveries.

THREE:Sandy, Larry and Dick shook their heads, looking hopeful.