You reproach philosophers for their staff and wallet. You might as well reproach cavalry for their trappings, infantry for their shields, standard-bearers for their banners, triumphant generals for their chariots drawn by four white horses and their cloaks embroidered with palm-leaves. The staff and wallet are not, it is true, carried by the Platonic philosophers, but are the badges of the Cynic school. To Diogenes and Antisthenes they were what the crown is to the king, the cloak of purple to the general, the cowl to the priest, the trumpet to the augur.
Source: The Project Gutenberg EBook of The Apologia and Florida of Apuleius of Madaura, by Lucius Apuleius