first, this man of whom we are speaking. The second was a Mytilenean, a musician. The third wrote a treatise on Agriculture. The fourth was an epigrammatic poet. Some writers also make mention of a fifth, who was an architect; and there is a book on mechanics extant which is attributed to him; which begins in this way:—
“This is what I heard from Teucer, the Carthaginian.”
And concerning the musician, the following story is told: That once he was reproached for not making himself heard, and he replied, “My organ contends on my behalf, and speaks.”
VI. Aristoxenus says, that this Pythagorean was never once defeated while acting as general. But that as he was attacked by envy, he once gave up his command, and his army was immediately taken prisoner.
VII. He was the first person who applied mathematical principles to mechanics, and reduced them to a system; and the first also who gave a methodical impulse to descriptive geometry