Before revision: Hence he ordered the carvings of the following two inscriptions: "This is a memorial to Hipparchus: Walk thinking just thoughts" and "This is a memorial to Hipparchus: Don't deceive a friend" ( 228c-229c ).
After revision: Hence he ordered the carvings of the following two inscriptions: "This is a memorial to Hipparchus: Walk thinking just thoughts" and "This is a memorial to Hipparchus: Don't deceive a friend" ( 229a–b ).