I'd go so far as to say 'be excellent to eachother'. Though I'm not sure how many people will understand the reference, I do believe it is essential that people

I'd go so far as to say 'be excellent to eachother'. Though I'm not sure how many people will understand the reference, I do believe it is essential that people look out for eachother, and not just themselves. And I mean being kind to people far away from any reciprocity relationship - helping a total stranger has the greatest impact, to my mind