Of present fame think little and of future less the praises that we receive after we are buried like the flowers that are strewed over our grave may be gratifying to the living but they are nothing to the dead.
You might hold an ethical position that it's wrong to lie but if you have plans for a war in Iraq and you want to keep them secret for practical reasons - to reduce casualties perhaps - and someone asks you about those plans you may need to lie for a 'good' outcome.