[Aristotle] was the most eminent of all the pupils of Plato.... He seceded from Plato while he was still alive; so that they tell a story that [Plato] said, " Aristotle has kicked us off, just as chickens do their mother after they have been hatched.
Those who have a natural talent for calculation are generally quick-witted at every other kind of knowledge; and even the dull, if they have had an arithmetical training, although they may derive no other advantage from it, always become much quicker than they would have been.
The orators and the despots have the least power in their cities ... since they do nothing that they wish to do, practically speaking, though they do whatever they think to be best.