[55] See vi. 2.
[56] See ii. 4.11.
[57] As thought Plato in the Timaeus 49–52.
[58] See ii. 5.5.
[59] de Gen. et Corr. ii. 2, 3.
[60] As objected Aristotle, in de Gen. et Corr. i. 7.
[61] See ii. 7.1.
[62] iii. 6.2.
[63] As asked Aristotle, de Gen. i. 7.
[64] In his Timaeus 50.