"Aristotle... characterised by less candour, although... twenty years the disciple of Plato, and with no principles beyond... his master, completely reversed his mode... and proposed as true and certain what... he... never esteemed as such. But these two... acquired much judgment and wisdom by the four preceding means... which raised their authority... high, so much... that those who succeeded them were willing... to acquiesce in their opinions, [rather] than to seek... for themselves. The chief question among their disciples... whether we ought... doubt... all things or hold some as certain,—a dispute which led... into extravagant errors; for a part of those... for doubt, extended it... to the neglect of... ordinary rules... [of] conduct; those... who maintained the doctrine of certainty, supposing that it must depend upon the senses, trusted entirely to them. To such an extent was this carried by Epicurus, that... he... affirm[ed], contrary to all the reasonings of the astronomers, that the sun is no larger than it appears."