Diogenes Laërtius,
The Lives and Opinions of Eminent Philosophers
“ Who gave to Greece her written books of wisdom. And Athenæus, the Epigrammatic poet, speaks thus of all the Stoics in common:—O, ye who’ve learnt the doctrines of the Porch,And have committed to your books divineThe best of human learning; teaching menThat the mind’s virtue is the only good.And she it is who keeps the lives of men,And cities, safer than high gates or walls.But those who place their happiness in pleasure,Are led by the least worthy of the Muses. ”
