Speusippus

To solve the problems of separation and precision, contemporary philosophers such as Speusippus and possibly Plato posited a universe of mathematical entities which are perfect instances of mathematical properties, adequately multiple for any theorem we wish to prove, and separate from the physical or perceptible world.

Aristotle and Mathematics Mendell, Henry 2004

Aristotle, whom Averroes regards as the law of Nature, bought a few books of Speusippus straightway after his death for 72,000 sesterces.

The Love of Books : The Philobiblon of Richard de Bury 2007

The evidence for Speusippus, Plato's successor as head of the Academy, is fragmentary and second hand, so that certainty in iterpretation is hardly possible.

Pythagoreanism Huffman, Carl 2006

Aristotle twice cites agreement between Speusippus and the Pythagoreans

Pythagoreanism Huffman, Carl 2006

We cannot be sure, however, either that the title goes back to Speusippus or that he assigned all ideas in it to the Pythagoreans.

Pythagoreanism Huffman, Carl 2006

The evidence is not sufficient to conclude that Speusippus routinely assigned Platonic and Academic ideas to the Pythagoreans (Taran 1981, 109), but there is enough evidence to suggest that he did so in some cases.

Pythagoreanism Huffman, Carl 2006

Speusippus also wrote a book On Pythagorean Numbers (Fr. 28 Taran), which builds on ideas clearly attested for the early Pythagoreans (e.g. numbers conceived as arrangements of units and ten as the perfect number).

Pythagoreanism Huffman, Carl 2006

There is evidence that Plato's successors, Speusippus and Xenocrates, both presented Academic speculations arising in part from Plato's later metaphysics as the work of Pythagoras, who lived some 150 years earlier.

Pythagoreanism Huffman, Carl 2006

After Plato died, Speusippus dorked the whole thing up--that's my view anyway.

Don't get me started on Plato... 2005

I think the Academy lost everything when he died, and under his nephew Speusippus, it became a place of Platonic dogma, instead of philosophy.

Don't get me started on Plato... 2005