Live not on evil!

My son Christopher told me a very clever palindrome: 'Live dirt up a side-track carted is a putrid evil'. This beats the longest I knew: 'Able was I ere I saw Elba' (put into the mouth of Napoleon in exile). However 'live' and 'evil' gave me the idea for a short and punchy one: 'Live not on evil!' I think this would have made a better motto for Google than 'Don't be evil'.