De Stoicorum repugnantiis
Plutarch
Plutarch. Plutarch's Morals, Vol. IV. Goodwin, William W., translator. Boston: Little, Brown, and Company; Cambridge, MA: Press of John Wilson and Son, 1874.
He defines Rhetoric to be an art concerning the ornament and the ordering of a discourse that is pronounced. And farther in his First Book he has written thus: And I am not only of opinion that a regard ought to be had to a liberal and simple adorning of words, but also that care is. to be taken for proper delivery, as regards the right elevation of the voice and the compositions of the countenance and hands. Yet he, who is in this place so curious and exact, again in the same book, speaking of the collision of the vowels, says: We ought not only to let these things pass, minding somewhat that is better, but also to neglect certain obscurities and defects, nay, solecisms also, of which others, and those not a few, would be ashamed. Certainly, in one place to allow those who would speak eloquently so carefully to dispose their speech as even to observe a decorum in the very composition of their mouth and hands, and in another place to forbid the taking care of defects and obscurities, and the being ashamed even of committing solecisms, is the property of a man who little cares what he says, but rashly utters whatever comes first into his mouth.
Moreover, in his Natural Positions having warned us not to trouble ourselves but to be at quiet about such things as require experience and investigation, he says: Let us not think after the same manner with Plato, that liquid nourishment is conveyed to the lungs, and dry to the stomach; nor let us embrace other errors like to these. Now it is my opinion, that to reprehend others, and then
not to keep one’s self from falling into those things which one has reprehended, is the greatest of contradictions and shamefullest of errors. But he says, that the connections made by ten axioms amount to above a million in number, having neither searched diligently into it by himself nor attained to the truth by men experienced in it. Yet Plato had to testify for him the most renowned of the physicians, Hippocrates, Philistion, and Dioxippus the disciple of Hippocrates; and of the poets, Euripides, Alcaeus, Eupolis, and Eratosthenes, who all say that the drink passes through the lungs. But all the arithmeticians refel Chrysippus, amongst whom also is Hipparchus, demonstrating that the error of his computation is very great; since the affirmative makes of the ten axioms one hundred and three. thousand forty and nine connections, and the negative three hundred and ten thousand nine hundred fifty and two.