ஒற்றொற்றித் தந்த பொருளையும் மற்றுமோர்
ஒற்றினால் ஒற்றிக் கொளல்.
Spying by spies, the things they tellTo test by other spies is well
Let not a king receive the information which a spy has discovered and made known to him, until he has examined it by another spy