Anaximenes
Links
Anaximenes
http://faculty.washington.edu/smcohen/320/anaximen.htm
Lecture notes by S. Marc Cohen, exploring reasoning which underlay Anaximenes' thought, and whether or not it is coherent.
Life of Anaximenes
http://classicpersuasion.org/pw/diogenes/dlanaximenes.htm
From the C.D. Yonge translation of the Lives of the Philosophers, by Diogenes Laertius.